JP7702489B2

JP7702489B2 - Rod connection structure

Info

Publication number: JP7702489B2
Application number: JP2023538355A
Authority: JP
Inventors: 正幸石垣
Original assignee: Nagaki Seiki Co Ltd
Current assignee: Nagaki Seiki Co Ltd
Priority date: 2021-07-30
Filing date: 2022-06-28
Publication date: 2025-07-03
Anticipated expiration: 2042-06-28
Also published as: JP7809775B2; JP7809774B2; TW202322509A; WO2023008051A1; KR20240038067A; JP2025000964A; CN222811044U; JP7833511B2; JP2026035685A; JP2025000961A; JP2025000963A; JPWO2023008051A1

Description

この発明は、棒体の連結構造に関し、特に、例えば、間接活線工事に用いられる間接工事用絶縁操作棒及びそれに連結される先端工具等との連結構造に関する。 This invention relates to a connecting structure for a rod body, and in particular to a connecting structure between an insulated control rod for indirect work used for indirect live-line work, and a tip tool, etc., connected to the rod.

従来、間接活線工事用工具と間接活線工事用絶縁操作棒との連結構造について、いくつかの提案がなされている（特許文献１ないし３）。
間接活線工事では作業中の作業者の安全を確保することが極めて重要であり、絶縁操作棒の先端に交換自在に連結された皮剥機などの各種間接活線工事用工具が作業中に不用意に脱落することがないよう配慮されている。
先行文献１の連結構造は、連結金具の掛止溝を、縦溝部分、横溝部分、縦溝部分からなる略逆Ｌ字形状の第１のシフト溝部に、横溝部分、縦溝部分からなる略横向きＬ字形状の第２のシフト溝部を追加し、または、縦溝に追加縦溝を形成している。そして、縦溝中をピンが上端まで動いても横への抜け止めがなされ、ピンが掛止溝から外れ難いものである。
先行文献２の連結構造は、共用操作棒が、棒状部材と先端工具を接続可能な接続部と先端工具をロックするための固定部とを有し、固定部は、傾斜部と傾斜部とが算盤珠状に連接された芯部分と、この芯部分の軸方向に沿ってスライドして先端工具に当接することができるスライド部材とで構成され、スライド部材は、押圧部の各当部が、芯部分の径方向にて芯部分を押し、先端工具を締め付けて固定するように形成されている。
先行文献３の連結構造は、工具部が、円柱状の軸部、一対のプッシュボタン、及び、二つの板ばねを備え、接続金具が、軸穴と一対の切り欠き溝を有し、軸穴には、軸部を導入及び嵌合でき、ノブを把持して、凹部からラッチ板を出没させて、操作棒と先端工具とを接続できるように形成されている。 Conventionally, several proposals have been made regarding the connection structure between an indirect live-line work tool and an insulated operating rod for indirect live-line work (Patent Documents 1 to 3).
In indirect live-line construction work, it is extremely important to ensure the safety of workers during the work, and care is taken to ensure that various indirect live-line construction tools, such as strippers which are freely connected to the end of the insulated control rod, do not fall off inadvertently during work.
The connecting structure of the prior art document 1 adds a second shift groove portion having a substantially horizontal L-shape consisting of a horizontal groove portion and a vertical groove portion to a first shift groove portion having a substantially inverted L-shape consisting of a vertical groove portion, a horizontal groove portion and a vertical groove portion, or forms an additional vertical groove in the vertical groove. Even if the pin moves to the top end in the vertical groove, it is prevented from slipping out to the side, and the pin is unlikely to come out of the hooking groove.
The connecting structure of Prior Art Document 2 has a common operating rod having a connection portion capable of connecting a rod-shaped member and a tool tip, and a fixing portion for locking the tool tip, and the fixing portion is composed of a core portion in which inclined portions are connected like abacus beads, and a slide member that can slide along the axial direction of this core portion and abut against the tool tip, and the slide member is formed so that each abutment portion of the pressing portion presses the core portion in the radial direction of the core portion, thereby tightening and fixing the tool tip.
In the connecting structure of Prior Art Document 3, the tool portion has a cylindrical shaft portion, a pair of push buttons, and two leaf springs, and the connecting fitting has a shaft hole and a pair of cutout grooves into which the shaft portion can be introduced and fitted, and is formed so that the knob can be grasped and the latch plate can be made to appear and disappear from the recess to connect the operating rod and the tip tool.

特開２００８－１９９８６１号公報JP 2008-199861 A 特開２０１３－１０２６２９号公報JP 2013-102629 A 特開２０１７－９９１４１号公報JP 2017-99141 A

しかしながら、特許文献１ないし３の発明における連結構造は、十分に安全性が確保されているとは言い難い。
本発明は、かかる事情に鑑みなされたもので、より一層安全性を担保することができる棒体の連結構造を提供することを目的とする。 However, it is difficult to say that the connection structures in the inventions of Patent Documents 1 to 3 ensure sufficient safety.
The present invention has been made in consideration of the above circumstances, and has an object to provide a rod body connecting structure that can further ensure safety.

この発明の請求項１にかかる棒体の連結構造は、棒体と前記棒体に連結される被連結部とを連結したロック状態にできる連結構造であって、
棒体側の連結部と、被連結部側の連結部とが連結されるように構成された芯部材と、
前記棒体側の領域において棒体の軸方向に移動可能に棒体側に配設される第１連結部材と、
前記被連結部側の領域に配設される第２連結部材とを備え、
前記第１連結部材は、環状であり、芯部材の周囲に嵌め装填されており、
前記第２連結部材は、芯部材が嵌挿される連結部取り付け孔が形成され、
前記連結部取り付け孔に芯部材を組み合わせて棒体側の連結部と被連結部側の連結部とが連結されるように構成され、
前記第１連結部材及び第２連結部材は、前記第１連結部材の手元側と棒体の先端側との間に介挿された第１弾発部材により、ロック状態のとき先端側に押圧されるように構成され、
前記芯部材は、第２連結部材の第２連結部に設けられた空洞部に形成された連結部取り付け孔に嵌挿される形状を備え、
前記連結部取り付け孔の中に、柱状の芯部材取り付け部が設けられ、
前記柱状の芯部材取り付け部は、第２連結部材の手元側の部位に突き当たるように構成され、
前記芯部材は、長手方向に穿設された中空環状の中空部を有しており、
前記中空部は、中央において、細長くくびれた第１中空部が形成され、第１中空部より先端側において第２中空部が形成され、
柱状の芯部材取り付け部の手元側の端部と中空部の第１中空部の境界壁部との間に存在する第２中空部に、第２弾発部材が配設されており、
前記第２弾発部材は、柱状の芯部材取り付け部及び第２連結部をロック時縮んで先端側に押すように構成され、ロック状態では軽く縮んでいる状態で、解除動作で第２連結部材を手前側に引いた時に更に縮んだ状態になるように構成され、
芯部材は、第１連結部材が介装された領域の外周部に、固定手段を構成する雄ネジ部が設けられており、第１連結部材は、芯部材に介装された領域の筒内に、固定手段を構成する雌ネジ部が設けられており、第１連結部材の固定手段は、芯部材の固定手段に螺合されて、第１連結部材を回すことにより移動させて第１連結部材により第２連結部材を押圧するに適する位置に停止させることができるように構成され、
前記棒体は、棒体に連結される被連結部側の領域に、連結構造により連結されたものが分離することを防止する、分離防止手段を構成する固定手段が配設され、
前記第２連結部材は、棒体に連結される被連結部側の領域に、前記棒体側の固定手段を停止させる固定手段が形成され、
前記棒体に被連結部を連結したとき、前記棒体側の連結部は、前記棒体の分離防止手段を構成する固定手段により第２連結部材の第１連結部材側領域に形成された固定手段に固定されて、第２連結部材の移動を制御して、前記棒体側の固定手段が前記第２連結部材に形成された固定手段から外れないように形成されたことを特徴とする、棒体の連結構造である。
この発明の請求項２にかかる棒体の連結構造は、棒体と前記棒体に連結される被連結部とを連結したロック状態にできる連結構造であって、
棒体側の連結部と、被連結部側の連結部とが連結されるように構成された芯部材と、
前記棒体側の領域において棒体の軸方向に移動可能に棒体側に配設される第１連結部材と、
前記被連結部側の領域に配設される第２連結部材とを備え、
前記第１連結部材は、環状であり、芯部材の周囲に嵌め装填されており、
前記第２連結部材は、芯部材が嵌挿される連結部取り付け孔が形成され、
前記連結部取り付け孔に芯部材を組み合わせて棒体側の連結部と被連結部側の連結部とが連結されるように構成され、
前記第１連結部材及び第２連結部材は、前記第１連結部材の手元側と棒体の先端側との間に介挿された抑止手段を構成する第１弾発部材により、ロック状態のとき先端側に押圧されるように構成され、
前記芯部材は、第２連結部材の第２連結部に設けられた空洞部に形成された連結部取り付け孔に嵌挿される形状を備え、
前記連結部取り付け孔の中に、柱状の芯部材取り付け部が設けられ、
前記柱状の芯部材取り付け部は、第２連結部材の手元側の部位に突き当たるように構成され、
前記芯部材は、長手方向に穿設された中空環状の中空部を有しており、
前記中空部は、中央において、細長くくびれた第１中空部が形成され、第１中空部より先端側において第２中空部が形成され、
柱状の芯部材取り付け部の手元側の端部と中空部の第１中空部の境界壁部との間に存在する第２中空部に、抑止手段を構成する第２弾発部材が配設されており、
前記第２弾発部材は、柱状の芯部材取り付け部及び第２連結部をロック時縮んで先端側に押すように構成され、ロック状態では軽く縮んでいる状態で、解除動作で第２連結部材を手前側に引いた時に更に縮んだ状態になるように構成され、
芯部材は、第１連結部材が介装された領域の外周部に、固定手段を構成する雄ネジ部が設けられており、第１連結部材は、芯部材に介装された領域の筒内に、固定手段を構成する雌ネジ部が設けられており、第１連結部材の固定手段は、芯部材の固定手段に螺合されて、第１連結部材を回すことにより移動させて第１連結部材により第２連結部材を押圧するに適する位置に停止させることができるように構成され、
前記棒体側の連結部と被連結部側の連結部とは、一方に凸部が形成され、他方に凹部が形成されており、その凸部と凹部とが組み合わさって連結されるように構成されており、
前記第１連結部材と前記第２連結部材とは、連結された第１連結部材と第２連結部材とが反対方向に移動することにより分離されるように構成されており、
前記棒体は、連結構造により連結されたものが分離することを防止する分離防止手段を構成する抑止手段が配設されており、
前記抑止手段は、第１連結部材を、第２連結部材側に押圧して、前記連結した時に噛み合わされた凸部と凹部とが離れないように構成されたことを特徴とする、棒体の連結構造である。 The rod body connection structure according to claim 1 of the present invention is a connection structure that can connect a rod body and a connected part connected to the rod body to a locked state,
A core member configured to connect the connecting portion on the rod body side and the connecting portion on the connected portion side;
A first connecting member arranged on the rod body side in an area on the rod body side so as to be movable in the axial direction of the rod body;
a second connecting member disposed in a region on the connected portion side,
The first connecting member is annular and fitted around the core member,
The second connecting member has a connecting portion mounting hole into which a core member is inserted,
A core member is combined with the connecting portion mounting hole so that the connecting portion on the rod body side and the connecting portion on the connected portion side are connected to each other,
The first connecting member and the second connecting member are configured to be pressed toward the tip side in a locked state by a first resilient member interposed between a proximal side of the first connecting member and a tip side of the rod body,
the core member has a shape adapted to be inserted into a connecting portion attachment hole formed in a hollow portion provided in the second connecting portion of the second connecting member,
A columnar core member attachment portion is provided in the connecting portion attachment hole,
The columnar core member attachment portion is configured to abut against a proximal portion of the second connecting member,
The core member has a hollow annular portion drilled in a longitudinal direction,
The hollow portion has a first hollow portion formed at a center thereof, the first hollow portion being elongated and narrow, and a second hollow portion formed on a tip side of the first hollow portion,
A second resilient member is disposed in a second hollow portion that exists between a proximal end of the columnar core member attachment portion and a boundary wall portion of the first hollow portion of the hollow portion,
The second resilient member is configured to contract and push the columnar core member attachment portion and the second connecting portion toward the tip side when locked, and is configured to be in a lightly contracted state in the locked state and to be further contracted when the second connecting member is pulled toward the front side in the release operation,
The core member has a male threaded portion constituting a fixing means on the outer periphery of the area in which the first connecting member is interposed, and the first connecting member has a female threaded portion constituting a fixing means within a tube in the area in which the core member is interposed, and the fixing means of the first connecting member is screwed into the fixing means of the core member and is configured so that the first connecting member can be moved by rotating it and stopped at a position suitable for pressing the second connecting member by the first connecting member,
The rod body is provided with a fixing means constituting a separation prevention means for preventing separation of the connected parts by the connecting structure in an area on the connected part side connected to the rod body,
The second connecting member is formed with a fixing means for stopping the fixing means on the rod body in an area on the connected portion side that is connected to the rod body,
This is a rod connection structure, characterized in that when the connected part is connected to the rod body, the connecting part on the rod body side is fixed to a fixing means formed in the first connecting member side region of the second connecting member by a fixing means constituting a separation prevention means of the rod body, thereby controlling the movement of the second connecting member and preventing the fixing means on the rod body side from coming off the fixing means formed on the second connecting member.
The rod body connection structure according to claim 2 of the present invention is a connection structure that can connect a rod body and a connected part connected to the rod body to a locked state,
A core member configured to connect the connecting portion on the rod body side and the connecting portion on the connected portion side;
A first connecting member arranged on the rod body side in an area on the rod body side so as to be movable in the axial direction of the rod body;
a second connecting member disposed in a region on the connected portion side,
The first connecting member is annular and fitted around the core member,
The second connecting member has a connecting portion mounting hole into which a core member is inserted,
A core member is combined with the connecting portion mounting hole so that the connecting portion on the rod body side and the connecting portion on the connected portion side are connected to each other,
The first connecting member and the second connecting member are configured to be pressed toward the tip side in a locked state by a first resilient member constituting a restraining means interposed between a proximal side of the first connecting member and a tip side of the rod body,
the core member has a shape adapted to be inserted into a connecting portion attachment hole formed in a hollow portion provided in the second connecting portion of the second connecting member,
A columnar core member attachment portion is provided in the connecting portion attachment hole,
The columnar core member attachment portion is configured to abut against a proximal portion of the second connecting member,
The core member has a hollow annular portion drilled in a longitudinal direction,
The hollow portion has a first hollow portion formed at a center thereof, the first hollow portion being elongated and narrow, and a second hollow portion formed on a tip side of the first hollow portion,
a second resilient member constituting a restraining means is disposed in a second hollow portion that exists between a proximal end of the columnar core member attachment portion and a boundary wall portion of the first hollow portion of the hollow portion;
The second resilient member is configured to contract and push the columnar core member attachment portion and the second connecting portion toward the tip side when locked, and is configured to be in a lightly contracted state in the locked state and to be further contracted when the second connecting member is pulled toward the front side in the release operation,
The core member has a male threaded portion constituting a fixing means on the outer periphery of the area in which the first connecting member is interposed, and the first connecting member has a female threaded portion constituting a fixing means within a tube in the area in which the core member is interposed, and the fixing means of the first connecting member is screwed into the fixing means of the core member and is configured so that the first connecting member can be moved by rotating it and stopped at a position suitable for pressing the second connecting member by the first connecting member,
The connecting portion on the rod body side and the connecting portion on the connected portion side have a convex portion formed on one side and a concave portion formed on the other side, and are configured to be connected by combining the convex portion and the concave portion,
The first connecting member and the second connecting member are configured to be separated by moving the connected first connecting member and the connected second connecting member in opposite directions,
The rod body is provided with a suppression means that constitutes a separation prevention means for preventing separation of the rod body and the rod body connected by the connection structure,
The restraining means is a rod body connecting structure characterized in that it is configured to press the first connecting member toward the second connecting member so that the interlocking convex and concave portions do not separate when connected.

本発明によれば、より一層安全性を担保することができる棒体の連結構造を提供することができる。 According to the present invention, it is possible to provide a rod body connecting structure that can ensure even greater safety.

この発明の上記の目的、その他の目的、特徴及び利点は、図面を参照して行う以下の発明を実施するための形態の説明から一層明らかとなろう。The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the invention which refers to the drawings.

本発明の第１の実施の形態である連結構造の正面図解図である。1 is a front diagrammatic view of a connection structure according to a first embodiment of the present invention; 図１図示の連結構造の正断面図解図である。FIG. 2 is a front sectional view of the connection structure shown in FIG. 1 . 図１図示の連結構造の断面図解図であり、（Ａ）は図１Ａ１－Ａ１断面図解図であり、（Ｂ）は図１Ｂ１－Ｂ１断面図解図であり、（Ｃ）は図１Ｃ１－Ｃ１断面図解図である。1A is a cross-sectional view of the connection structure shown in FIG. 1A 1 -A 1 , FIG. 1B is a cross-sectional view of FIG. 1B 1 -B 1 , and FIG. 1C is a cross-sectional view of FIG. 1C 1 -C 1 . 図１図示の連結構造の作動を表した正断面図解図であり、（Ａ）はロック解除状態を示す図であり、（Ｂ）は連結部を取外した状態を示す図である。2A and 2B are front sectional diagrams showing the operation of the connecting structure shown in FIG. 1, in which FIG. 2A shows an unlocked state, and FIG. 2B shows a state in which the connecting portion has been removed. 図１図示連結構造の分解した状態の斜視図解図である。FIG. 2 is an exploded perspective view of the connecting structure shown in FIG. 1 ; 図１図示連結構造の分解した状態の断面図解図である。FIG. 2 is an exploded cross-sectional view of the connecting structure shown in FIG. 1 . 図１図示連結構造を備えた操作棒の斜視図解図である。FIG. 2 is a perspective view of an operating rod having the connecting structure shown in FIG. 1 . 図１図示連結構造の連結部を取外した状態を示す斜視図解図である。2 is a perspective view illustrating a state in which a connecting portion of the connecting structure illustrated in FIG. 1 is removed; FIG. 図１図示連結構造を分解した状態を示す斜視図解図である。FIG. 2 is an exploded perspective view of the connecting structure shown in FIG. 1 ; 本発明の第２の実施の形態である連結構造の一部を断面とした正面図解図である。FIG. 11 is a front view, partially in section, of a connecting structure according to a second embodiment of the present invention; 本発明の第２の実施の形態である連結構造の正断面図解図である。FIG. 11 is a front sectional view of a connecting structure according to a second embodiment of the present invention; 本発明の第２の実施の形態である連結構造の横断面図解図であり、（Ａ）は図１０ＢＡ２－Ａ２断面図であり、（Ｂ）は図１０ＢＢ２－Ｂ２断面図であり、（Ｃ）は図１０ＢＣ２－Ｃ２断面図である。10B , (B) is a cross-sectional view taken along line B2-B2 of FIG. 10B , and (C) is a cross-sectional view taken along line C2-C2 of FIG. 10B . 図１０図示連結構造の作動を表した正断面図解図であり、（Ａ）はロック解除状態を示す図であり、（Ｂ）は連結部を取外した状態を示す図である。11A and 11B are front sectional diagrams showing the operation of the connecting structure shown in FIG. 10, in which (A) shows an unlocked state, and (B) shows a state in which the connecting portion has been removed. 図１０図示連結構造を分解した状態を示す斜視図解図である。FIG. 11 is an exploded perspective view of the connecting structure shown in FIG. 10 . 図１０図示連結構造を分解した状態を示す断面図解図である。FIG. 11 is an illustrative sectional view showing the connecting structure shown in FIG. 10 in an exploded state. 図１０図示連結構造を備えた、操作棒の斜視図解図である。FIG. 11 is a perspective view of an operating rod having the connecting structure shown in FIG. 10 . 図１０図示連結構造の連結部を取外した状態の斜視図解図である。11 is a perspective view of the connecting structure shown in FIG. 10 with a connecting portion removed; FIG. 本発明の第３の実施の形態である連結構造の図解図であり、（Ａ）は正面図解図であり、（Ｂ）は正断面図解図である。11A and 11B are schematic diagrams of a connecting structure according to a third embodiment of the present invention, in which FIG. 11A is a front schematic diagram, and FIG. 本発明の第３の実施の形態である連結構造の横断面図解図であり、（Ａ）は図１０ＢＡ３－Ａ３断面図であり、（Ｂ）は図１０ＢＢ３－Ｂ３断面図であり、（Ｃ）は図１０ＢＣ３－Ｃ３断面図である。10A is a cross-sectional view of a connection structure according to a third embodiment of the present invention, (A) is a cross-sectional view taken along line A3 - A3 of FIG. 10B, (B) is a cross-sectional view taken along line B3 - B3 of FIG. 10B, and (C) is a cross-sectional view taken along line C3 - C3 of FIG. 10B. 本発明の第３の実施の形態である連結構造の作動を表した断面図解図であり、Ａ）はロック解除状態を示す図であり、（Ｂ）は連結部を取外した状態を示す図である。13A and 13B are cross-sectional diagrams showing the operation of a connecting structure according to a third embodiment of the present invention, in which FIG. 13A shows an unlocked state, and FIG. 13B shows a state in which the connecting portion has been removed. 図１６図示連結構造の分解した状態の斜視図解図である。FIG. 17 is a perspective view of the connecting structure shown in FIG. 16 in an exploded state. 図１６図示連結構造の分解した状態の斜視図解図である。FIG. 17 is a perspective view of the connecting structure shown in FIG. 16 in an exploded state. 図１６図示連結構造を備えた操作棒の斜視図解図である。FIG. 17 is a perspective view of an operating rod having the connecting structure shown in FIG. 16 . 図１６図示連結構造の連結部を取外した状態の斜視図解図である。FIG. 17 is a perspective view of the connecting structure shown in FIG. 16 with the connecting portion removed; 本発明の第４の実施の形態である連結構造の正面図解図である。FIG. 13 is a front diagrammatic view of a connecting structure according to a fourth embodiment of the present invention; 図２２図示連結構造の分解した状態の斜視図解図である。FIG. 23 is a perspective view of the connecting structure shown in FIG. 22 in an exploded state; 図２２図示連結構造の分解した状態の図解図であり、（Ａ）は斜視図解図であり、（Ｂ）は平面図解図であり、（Ｃ）は、図（Ｂ）のａ－ａ、ｂ－ｂ及びｃ－ｃ断面図解図である。23A and 23B are diagrams illustrating the connection structure shown in FIG. 22 in an exploded state, (A) being a perspective diagram, (B) being a plan diagram, and (C) being cross-sectional diagrams along lines a-a, bb, and cc of FIG. (B). 図２２図示連結構造の一部を断面とした斜視図解図である。FIG. 23 is a perspective view of the connection structure shown in FIG. 22, with a portion of the structure in section; 図２２図示連結構造の分解した状態の斜視図解図である。FIG. 23 is a perspective view of the connecting structure shown in FIG. 22 in an exploded state; 図２２図示連結構造の分解した状態の斜視図解図である。FIG. 23 is a perspective view of the connecting structure shown in FIG. 22 in an exploded state; 図２２図示連結構造の芯部材の正面図解図である。FIG. 23 is a front view of the core member of the connection structure shown in FIG. 22 . 図２２図示連結構造の連結部を取外した状態の斜視図解図である。23 is a perspective view of the connecting structure shown in FIG. 22 with the connecting portion removed. FIG. 図２２図示連結構造の斜視図解図である。FIG. 23 is a perspective view of the connection structure shown in FIG. 22 . 図２２図示連結構造の斜視図解図である。FIG. 23 is a perspective view of the connection structure shown in FIG. 22 . 図２２図示連結構造の正面図解図であり、（Ａ）はロック状態を示す図であり、（Ｂ）は仮ロック状態を示す図である。23A and 23B are front diagrammatic views of the connecting structure shown in FIG. 22, in which FIG. 23A shows a locked state, and FIG. 23B shows a provisionally locked state. 図２２図示連結構造の正面図解図であり、（Ａ）はロック解除状態を示す図であり、（Ｂ）は連結部取外し状態を示す図である。23A and 23B are front diagrammatic views of the connecting structure shown in FIG. 22, in which FIG. 23A shows an unlocked state, and FIG. 23B shows a state in which the connecting portion is detached. 図２２図示連結構造を備えた操作棒の斜視図解図である。FIG. 23 is a perspective view of an operating rod having the connecting structure shown in FIG. 22 . 図１図示連結構造を備えた、変形例である操作棒の斜視図解図である。FIG. 2 is a perspective view of a modified operating rod having the connecting structure shown in FIG. 1 . 図１０図示連結構造を備えた、変形例である操作棒の斜視図解図である。FIG. 11 is a perspective view of a modified operating rod having the connecting structure shown in FIG. 10 . 図１６図示連結構造を備えた、変形例である操作棒の斜視図解図である。FIG. 17 is a perspective view of a modified operating rod having the connecting structure shown in FIG. 16 . 図２２図示連結構造を備えた、変形例である操作棒の斜視図解図である。FIG. 23 is a perspective view of a modified operating rod having the connecting structure shown in FIG. 22 .

（定義）
この発明に係る棒体の手に持つ方の側を手元あるいは手元側といい、前記手元側とは反対側の先端側を先端あるいは先端側と言う。
この発明に係る棒体における長手方向に延びる中心線を軸線と言い、その軸線の伸びる方向を軸方向と言う。棒体の外周方向に沿った方向を周方向と言う。 (definition)
The side of the rod body according to the present invention that is held by hand is referred to as the handle or handle side, and the tip side opposite the handle side is referred to as the tip or tip side.
In the rod body of the present invention, the center line extending in the longitudinal direction is referred to as the axis line, the direction in which the axis line extends is referred to as the axial direction, and the direction along the outer periphery of the rod body is referred to as the circumferential direction.

この発明に係る棒体の連結構造は、例えば、棒体の先端側において棒体の先端と連結工具の棒体に取り付けられる部位との連結構造、あるいは二つに分割された棒体を連結する連結構造が、代表例である。
この明細書においては、連結工具、先端工具及び二つに分割された内の一方を、連結具と称する。 Representative examples of the rod body connecting structure of the present invention include a connecting structure at the tip side of the rod body between the tip of the rod body and a portion of a connecting tool that is attached to the rod body, or a connecting structure that connects two divided rod bodies.
In this specification, the connecting tool, the tool tip and one of the two divided parts are referred to as a connecting tool.

この発明に係る一実施の形態である棒体である操作棒１２において、連結具と連結される連結部と、前記操作棒１２に連結される連結具である先端工具１４における連結される被連結部とを連結する連結構造１０は、例えば、作業現場周囲の停電を回避するために行われる間接活線工事において用いられる間接活線工事用絶縁操作棒と、その先端に交換自在に連結される先端工具等の連結具において操作棒１２と連結される被連結部との連結構造に関する。In one embodiment of the present invention, in an operating rod 12 which is a rod body, a connection structure 10 that connects a connecting part that is connected to a connector and a connected part that is connected to a tip tool 14 which is a connector that is connected to the operating rod 12, relates to a connection structure between an insulated operating rod for indirect live-line work used in indirect live-line work carried out to avoid power outages around a work site, for example, and a connected part that is connected to the operating rod 12 in a connector such as a tip tool that is replaceably connected to the tip of the insulated operating rod for indirect live-line work used in indirect live-line work carried out to avoid power outages around a work site.

一般的に、絶縁操作棒は、長尺の絶縁操作棒とこの操作棒の先端部に取り付けられる電気作業用工具すなわち先端工具とにより構成されており、高圧配電線を把持したり、切断したりするなど、その作業の目的に応じてそれに適する先端工具を取り替えて使用される。
この発明に係る操作棒１２は、前記絶縁操作棒と同じような目的で使用されるものであり、操作棒１２を絶縁操作棒と称することがある。 Generally, an insulated control rod is composed of a long insulated control rod and an electric work tool, i.e., a tip tool, attached to the tip of the rod, and is used by changing the tip tool appropriate for the purpose of the work, such as gripping or cutting high-voltage distribution lines.
The operating rod 12 according to the present invention is used for the same purpose as the insulated operating rod, and the operating rod 12 may be referred to as an insulated operating rod.

本発明にかかる一実施の形態である連結構造１０は、棒体である操作棒１２の他のものに連結される連結部と前記操作棒１２に連結される先端工具１４における操作棒１２に連結される被連結部とを連結する連結構造である。The connecting structure 10, which is one embodiment of the present invention, is a connecting structure that connects a connecting portion of the operating rod 12, which is a rod body, to another object, and a connected portion of the tip tool 14, which is connected to the operating rod 12, to which the operating rod 12 is connected.

棒体である操作棒１２の側の連結部２４と被連結部側の連結部３２とは、一方に凸部が形成され、他方に凹部が形成されており、その凸部と凹部とが組み合わさって連結されるように構成されている。
この実施の形態においては、（操作棒側の）連結部２４に凸部が形成され、（先端工具側の）連結部３２に凹部が形成されている。 The connecting portion 24 on the side of the operating rod 12, which is a rod body, and the connecting portion 32 on the side of the connected portion have a convex portion formed on one side and a concave portion formed on the other side, and are configured so that the convex portion and the concave portion are combined to connect.
In this embodiment, a convex portion is formed on the connecting portion 24 (on the operating rod side), and a concave portion is formed on the connecting portion 32 (on the tool tip side).

前記操作棒１２は、操作棒１２における他のものに連結される連結部の領域に、第１連結部材５０が配設されており、前記先端工具１４は、先端工具１４における操作棒１２に連結される被連結部の領域に第２連結部材８０が配設されている。
前記操作棒１２は、先端工具１４に連結される側の領域に、連結構造により連結されたものが分離することを防止する、分離防止手段を構成する固定手段１６が配設され、前記第２連結部材８０は、操作棒１２に連結される側の領域に、前記固定手段１６を停止させる連結構造により連結されたものが分離することを防止する、分離防止手段を構成する固定手段１６が配設され、固定手段１６を構成する第１の固定溝９０が形成されている。
前記第１連結部材５０は、操作棒の軸方向に移動可能に操作棒１２に配設され、前記操作棒１２に前記先端工具１４を取り付けて（操作棒側の）連結部２４と（先端工具側の）連結部３２とが連結されたロック状態にしたとき、前記操作棒１２の固定手段１６により第２連結部材８０の第１連結部材５０の側の領域に固定されて、第２連結部材８０の移動を制御して、前記操作棒１２の固定手段１６が前記第２連結部材８０の固定手段１６の第１の固定溝９０から外れないように形成されている。 The operating rod 12 has a first connecting member 50 arranged in the region of the connecting portion of the operating rod 12 that is connected to another part of the operating rod 12, and the tip tool 14 has a second connecting member 80 arranged in the region of the connected portion of the tip tool 14 that is connected to the operating rod 12.
The operating rod 12 is provided with a fixing means 16 constituting a separation prevention means for preventing separation of items connected by a connecting structure in the region connected to the tip tool 14, and the second connecting member 80 is provided with a fixing means 16 constituting a separation prevention means for preventing separation of items connected by a connecting structure that stops the fixing means 16 in the region connected to the operating rod 12, and a first fixing groove 90 constituting the fixing means 16 is formed.
The first connecting member 50 is arranged on the operating rod 12 so as to be movable in the axial direction of the operating rod, and when the tip tool 14 is attached to the operating rod 12 and the connecting portion 24 (on the operating rod side) and the connecting portion 32 (on the tip tool side) are connected to a locked state, the first connecting member 50 is fixed to the area of the second connecting member 80 on the side of the first connecting member 50 by the fixing means 16 of the operating rod 12, thereby controlling the movement of the second connecting member 80 and preventing the fixing means 16 of the operating rod 12 from coming out of the first fixing groove 90 of the fixing means 16 of the second connecting member 80.

前記操作棒１２に設けられた固定手段１６は、先端工具１４に対し相対的に、操作棒１２の移動に伴い、操作棒１２の軸方向に移動するように形成され、且つ操作棒１２の周方向に回転するように形成されている。The fixing means 16 provided on the operating rod 12 is configured to move in the axial direction of the operating rod 12 relative to the tip tool 14 as the operating rod 12 moves, and is configured to rotate in the circumferential direction of the operating rod 12.

前記第１連結部材５０は、先端工具１４側の第２連結部材８０に操作棒１２側の固定手段１６により操作棒１２を取り付けたとき、操作棒１２の側の固定手段１６を覆うように形成されることがある。The first connecting member 50 may be formed so as to cover the fixing means 16 on the side of the operating rod 12 when the operating rod 12 is attached to the second connecting member 80 on the tip tool 14 side by the fixing means 16 on the side of the operating rod 12.

前記第１連結部材５０は、先端工具１４側の第２連結部材８０に操作棒１２側の固定手段１６により操作棒１２を取り付けたとき、第２連結部材８０の第１連結部材５０側の端部を、手元側より先端側に向けて押圧するように形成されている。The first connecting member 50 is formed so that when the operating rod 12 is attached to the second connecting member 80 on the tip tool 14 side by the fixing means 16 on the operating rod 12 side, the end of the second connecting member 80 on the first connecting member 50 side is pressed from the hand side toward the tip side.

前記固定手段１６は、前記操作棒１２側の連結部２４に形成された第１の固定凸部を構成する固定ピン６０により構成され、
及び／又は、
前記固定手段１６は、前記操作棒１２側の第１連結部材５０に形成された第２の固定凸部（プランジャ）６２により構成されている。
他方の前記第２連結部材８０に形成された固定手段１６は、前記第１連結部材５０及び／又は第２連結部材８０において、対応した位置に形成された曲がりくねった固定溝により構成されている。前記曲がりくねった固定溝（第１の固定溝９０及び第２の固定溝９２）は、第１の固定凸部（ピン）６０及び第２の固定凸部を構成するプランジャ６２を軸方向に嵌め入れる開口部より先端側に向けて伸びる開口部側の溝部と、その開口部側の溝部よりその伸びる方向を変えて周方向に伸びる溝部と、更に、その伸びる方向を変えて手元側に向けて軸方向に伸びる固定溝部とを形成するように、平面視略Ｕの字型に構成されている。 The fixing means 16 is constituted by a fixing pin 60 constituting a first fixing protrusion formed on the connecting portion 24 on the operating rod 12 side,
and/or
The fixing means 16 is constituted by a second fixing convex portion (plunger) 62 formed on the first connecting member 50 on the operating rod 12 side.
The fixing means 16 formed on the other second connecting member 80 is configured by a winding fixing groove formed at a corresponding position in the first connecting member 50 and/or the second connecting member 80. The winding fixing grooves (first fixing groove 90 and second fixing groove 92) are configured to be approximately U-shaped in a plan view so as to form an opening-side groove portion extending toward the tip side from an opening into which the first fixing protrusion (pin) 60 and the plunger 62 constituting the second fixing protrusion are axially fitted, a groove portion extending in the circumferential direction from the opening-side groove portion, and a fixing groove portion extending in the axial direction toward the proximal side by changing the extending direction.

前記固定手段１６は、操作棒１２における連結部側の前記固定ピン６０及び前記プランジャ６２並びに操作棒１２に連結される被連結部側の前記第１の固定溝９０により構成されている。
前記固定ピン６０及びプランジャ６２は、操作棒１２の径方向に突き出し設けられている。
前記固定溝９０は、前記嵌り込んだ固定ピン６０の頭部が若干突出する深さと、前記嵌り込んだ固定ピン６０及びプランジャ６２の軸部が移動することができる幅とを備え、連結構造１０において操作棒１２に先端工具１４を取り付けたとき固定ピン６０及びプランジャ６２が移動しないように構成されている。 The fixing means 16 is constituted by the fixing pin 60 and the plunger 62 on the connecting portion side of the operating rod 12 , and the first fixing groove 90 on the connected portion side that is connected to the operating rod 12 .
The fixing pin 60 and the plunger 62 are provided so as to protrude in the radial direction of the operating rod 12 .
The fixing groove 90 has a depth that allows the head of the fitted fixing pin 60 to protrude slightly and a width that allows the fitted fixing pin 60 and the shaft portion of the plunger 62 to move, and is configured so that the fixing pin 60 and plunger 62 do not move when the tip tool 14 is attached to the operating rod 12 in the connecting structure 10.

前記操作棒１２側の固定手段１６は、第１連結部材５０に形成された位置決め部材を構成する第２の固定凸部（プランジャ）６２により構成され、前記位置決め部材を構成する第２の固定凸部（プランジャ）６２が第２連結部材８０に配設された前記固定手段１６である第２の固定溝９２に嵌合するように形成されることがある。The fixing means 16 on the operating rod 12 side is constituted by a second fixing convex portion (plunger) 62 constituting a positioning member formed on the first connecting member 50, and the second fixing convex portion (plunger) 62 constituting the positioning member may be formed to fit into a second fixing groove 92, which is the fixing means 16 arranged on the second connecting member 80.

前記第１連結部材５０は、先端工具１４の連結される被連結部を構成する（先端工具側の）連結部３２を操作棒１２の他のものに連結される連結部を構成する（操作棒側の）連結部２４に取り付けるとき、（先端工具側の）連結部３２の前記第２連結部材８０又は操作棒１２の側の連結部２４に螺合されるように構成され、操作棒１２に先端工具１４が固定されたときに第２連結部材８０より離れないように構成されることがある。The first connecting member 50 is configured to be screwed into the second connecting member 80 of the connecting part 32 (on the tip tool side) or the connecting part 24 on the side of the operating rod 12 when the connecting part 32 (on the tip tool side) constituting the connected part to which the tip tool 14 is connected is attached to the connecting part 24 (on the operating rod side) constituting the connecting part to be connected to something else on the operating rod 12, and may be configured so as not to come off the second connecting member 80 when the tip tool 14 is fixed to the operating rod 12.

前記棒体側の連結部２４と被連結部側の連結部３２とは、一方に凸部を構成する固定手段１６たる第１の固定凸部６０が形成され、他方に凹部を構成する固定手段１６たる第１の固定溝９０が形成されており、その凸部と凹部とが組み合わさって連結されるように構成されており、
前記第１連結部材５０は、棒体の軸方向に移動可能に棒体側に配設され、
前記第２連結部材８０は、被連結部に移動可能に被連結部側に配設され、
前記第１連結部材５０と前記第２連結部材８０とは、連結された第１連結部材５０と第２連結部材８０とが反対方向に移動することにより分離されるように構成されており、
前記操作棒１２は、連結構造により連結されたものが分離することを防止する分離防止手段を構成する抑止手段１８が配設されており、
前記抑止手段１８は、第１連結部材５０を、第２連結部材８０側に押圧して、前記連結した時に噛み合わされた凸部を構成する固定手段１６たる第１の固定凸部６０と凹部を構成する第１の固定溝９０とが離れないように構成されている。 The connecting portion 24 on the rod body side and the connecting portion 32 on the connected portion side are formed with a first fixing convex portion 60 as the fixing means 16 constituting a convex portion on one side, and a first fixing groove 90 as the fixing means 16 constituting a concave portion on the other side, and are configured so that the convex portion and the concave portion are combined and connected,
The first connecting member 50 is disposed on the rod body side so as to be movable in the axial direction of the rod body,
The second connecting member 80 is disposed on the connected portion side so as to be movable toward the connected portion,
The first connecting member 50 and the second connecting member 80 are configured to be separated by moving the connected first connecting member 50 and the second connecting member 80 in opposite directions,
The operating rod 12 is provided with a restraining means 18 constituting a separation prevention means for preventing separation of the components connected by the connecting structure.
The restraining means 18 is configured to press the first connecting member 50 toward the second connecting member 80, so that the first fixing convex portion 60, which is the fixing means 16 forming the convex portion that is engaged when connected, and the first fixing groove 90 forming the concave portion do not separate.

前記（操作棒側の）連結部２４及び／又は（先端工具側の）連結部３２は、操作棒１２の手元側より先端工具１４側に向けて又は先端工具１４側より操作棒１２側に向けて弾発する抑止手段１８が配設されている。The connecting portion 24 (on the operating rod side) and/or the connecting portion 32 (on the tip tool side) are provided with a restraining means 18 that resiliently springs from the hand side of the operating rod 12 toward the tip tool 14 side or from the tip tool 14 side toward the operating rod 12 side.

前記抑止手段１８は、弾発部材７０により構成されており、
前記弾発部材７０は、第１連結部材５０を被連結部側に押圧するように、又は前記第２連結部材８０を前記連結した時に噛み合わされた凸部を構成する第１の固定凸部６０と凹部を構成する第１の固定溝９０とが離れないように押圧するように配設されている。
前記弾発部材７０は、第１連結部材５０を先端工具１４側に押圧するように、又は前記固定手段１６を固定溝９０に押圧するように、（操作棒側の）連結部２４又は工具部（先端工具部）３０に介装されている。 The restraining means 18 is constituted by a resilient member 70,
The resilient member 70 is arranged so as to press the first connecting member 50 toward the connected portion, or so as to press the first fixing convex portion 60 and the first fixing groove 90 that constitute the recessed portion, which are engaged when the second connecting member 80 is connected, so as to prevent them from separating.
The resilient member 70 is interposed in the connecting portion 24 (on the operating rod side) or the tool portion (tip tool portion) 30 so as to press the first connecting member 50 toward the tip tool 14 side, or so as to press the fixing means 16 into the fixing groove 90.

前記操作棒１２は、操作棒本体２０より細い第１連結部４０が先端工具に連結される側に形成され、且つ前記第１連結部４０の先端工具１４側に前記第１連結部４０より太い第２連結部４２が連設されている。
前記第１連結部４０は、第１連結部材５０の軸方向における移動スペースを操作棒本体２０との間に形成するように構成されている。
前記第１連結部４０は、前記抑止手段１８を構成する弾発部材７０であるコイルバネをその周囲に配設することができる。
前記棒体側の（操作棒側の）連結部２４に被連結部である（先端工具側の）連結部３２を取り付けたロック状態にしたとき、前記第１連結部材５０は、前記固定手段１６により第２連結部材８０の第１連結部材側領域に固定されて、第２連結部材８０の移動を制御して、前記棒体側の固定手段１６が前記第２連結部材８０に形成された固定手段１６から外れないように形成されている。 The operating rod 12 has a first connecting portion 40 which is thinner than the operating rod main body 20 formed on the side where it is connected to the tip tool, and a second connecting portion 42 which is thicker than the first connecting portion 40 is connected to the tip tool 14 side of the first connecting portion 40.
The first connecting portion 40 is configured to form a movement space for the first connecting member 50 in the axial direction between itself and the operating rod body 20 .
The first connecting portion 40 may have a coil spring disposed therearound, which is a resilient member 70 constituting the restraining means 18 .
When the connecting part 32 (on the tip tool side), which is the connected part, is attached to the connecting part 24 (on the operating rod side) on the rod body side in a locked state, the first connecting member 50 is fixed to the first connecting member side region of the second connecting member 80 by the fixing means 16, and is formed to control the movement of the second connecting member 80 so that the fixing means 16 on the rod body side does not come off the fixing means 16 formed on the second connecting member 80.

この実施の形態においては、操作棒１２の操作棒本体２０は、断面略円形であり、芯部材４４の第１連結部４０及び第２連結部４２は、断面略円形であり、第１連結部材５０は、断面略円形であり、第２連結部材８０は、断面略円形である。
そして、これら操作棒１２の操作棒本体２０、芯部材４４、第１連結部材５０及び第２連結部材８０は、棒体の軸線方向に伸びる中心線を同心として、並列されている。 In this embodiment, the operating rod body 20 of the operating rod 12 has an approximately circular cross-section, the first connecting portion 40 and the second connecting portion 42 of the core member 44 have an approximately circular cross-section, the first connecting member 50 has an approximately circular cross-section, and the second connecting member 80 has an approximately circular cross-section.
The operating rod body 20, the core member 44, the first connecting member 50 and the second connecting member 80 of the operating rod 12 are arranged in parallel with each other, with the center line extending in the axial direction of the rod body being concentric.

棒体である操作棒１２の側の連結部２４と被連結部側の連結部３２とは、棒体の軸線方向に伸びる中心線を同心として、並列されており、一方に凸部が形成され、他方に凹部が形成されており、その凸部と凹部とが組み合わさって連結されるように構成されている。
この実施の形態においては、（操作棒側の）連結部２４に凸部を構成する芯部材４４が形成され、（先端工具側の）連結部３２に凹部を構成する棒体側連結部取り付け孔９４が形成されている。
芯部材４４は、断面略円形の棒状体であり、棒体側連結部取り付け孔９４は、断面略円形の環状体であり、棒体の軸線方向に伸びる中心線を同心として並列されており、棒体側連結部取り付け孔９４に芯部材４４を組み合わせて、操作棒１２の側の連結部２４と被連結部側の連結部３２とが連結されるように構成されている。 The connecting portion 24 on the side of the operating rod 12, which is a rod body, and the connecting portion 32 on the side of the connected portion are arranged in parallel, concentrically about a center line extending in the axial direction of the rod body, with a convex portion formed on one side and a concave portion formed on the other, and are configured so that the convex portion and the concave portion are combined and connected.
In this embodiment, a core member 44 constituting a convex portion is formed in the connecting portion 24 (on the operating rod side), and a rod side connecting portion mounting hole 94 constituting a concave portion is formed in the connecting portion 32 (on the tip tool side).
The core member 44 is a rod-shaped body with an approximately circular cross-section, and the rod side connecting part mounting hole 94 is an annular body with an approximately circular cross-section, and is aligned concentrically with a center line extending in the axial direction of the rod body. By combining the core member 44 with the rod side connecting part mounting hole 94, the connecting part 24 on the operating rod 12 side and the connecting part 32 on the connected part side are configured to be connected.

前記第１連結部材５０は、二つに分割された操作棒１２における手元側の領域の操作棒に配設され、
前記第２連結部材８０は、二つに分割された操作棒１２における先端工具側の操作棒に配設されることができる。 The first connecting member 50 is disposed on the operating rod 12 in a region on the hand side of the operating rod 12 divided into two parts,
The second connecting member 80 can be disposed on the operating rod 12 that is divided into two and that is on the tool tip side.

（第１の実施の形態）(First embodiment)

本発明にかかる第１の実施の形態である連結構造１０について、主として図１ないし図９に基づいて説明する。
本発明にかかる第１の実施の形態である連結構造１０は、棒体を構成する操作棒１２と前記操作棒１２に連結される被連結部を構成する先端工具１４の連結部位とを連結する連結構造である。 A connecting structure 10 according to a first embodiment of the present invention will be described mainly with reference to FIGS.
The connecting structure 10, which is a first embodiment of the present invention, is a connecting structure that connects an operating rod 12 that constitutes a rod body and a connecting portion of a tool tip 14 that constitutes a connected part connected to the operating rod 12.

操作棒１２は、長尺円柱状の棒体の本体を構成する操作棒本体２０と、操作棒本体２０の後端すなわち手前側に付設された把持部２２と、操作棒本体２０の先端側すなわち先端工具１４に取り付けられる側の領域に形成された（操作棒側の）連結部２４とを備える。The operating rod 12 comprises an operating rod body 20 which constitutes the main body of a long cylindrical rod, a gripping portion 22 attached to the rear end, i.e., the front side, of the operating rod body 20, and a connecting portion 24 (on the operating rod side) formed on the tip side of the operating rod body 20, i.e., in the area on the side that is attached to the tip tool 14.

間接活線工事用絶縁操作棒を構成する操作棒１２、特に操作棒本体２０の構造は、例えば一本の棒体でもよく、また２本の棒体が軸線を平行に配設されたものでも良い。
間接活線工事用絶縁操作棒は、電気的に絶縁性を有するものであればよく、また軽量化を計ることができるようなものであれば、より良い。例えば、繊維強化プラスチック（ＦＲＰ）などの各種の強靭性を備えたプラスチックを用いることができる。 The structure of the operating rod 12 constituting the insulated operating rod for indirect live-line work, particularly the operating rod body 20, may be, for example, a single rod body, or two rod bodies arranged with their axes parallel to each other.
The insulating rod for indirect live-line work may be made of any material that is electrically insulating and is also preferably made of a material that can be made lightweight. For example, various types of plastics with high toughness, such as fiber reinforced plastics (FRP), can be used.

間接活線工事用工具などの先端工具１４は、例えば活線状態の架空配電線の絶縁被覆を剥ぎ取る皮剥機、ヤットコ、係止具などで構成される。
先端工具１４は、電線等に直接的に接触する工具部３０と、工具部３０を操作棒１２に連結される領域に形成された、被連結部を構成する（先端工具側の）連結部３２とを備える。 The tip tool 14, such as an indirect live-line construction tool, is composed of, for example, a stripper for stripping the insulating coating of a live overhead distribution line, pliers, a fastening tool, and the like.
The tip tool 14 comprises a tool portion 30 that directly contacts an electric wire or the like, and a connecting portion 32 (on the tip tool side) that constitutes a connected portion and is formed in the area where the tool portion 30 is connected to the operating rod 12.

操作棒１２は、先端工具１４に連結される側の領域に、先端工具１４を固定する、連結構造により連結されたものが分離することを防止する、分離防止手段を構成する固定手段１６が配設されている。
更に、操作棒１２は、先端工具１４に連結される側の領域に、操作棒１２と先端工具１４との連結が外れることがないように、それらの移動を抑止する、連結構造により連結されたものが分離することを防止する、分離防止手段を構成する抑止手段１８が配設されている。 The operating rod 12 is provided with a fixing means 16 in the area on the side connected to the tip tool 14, which constitutes a separation prevention means for fixing the tip tool 14 and preventing the components connected by the connecting structure from separating.
Furthermore, in the area of the operating rod 12 that is connected to the tip tool 14, a restraining means 18 is provided that constitutes a separation prevention means for preventing the movement of the operating rod 12 and the tip tool 14 so that the connection between them is not released, and for preventing the items connected by the connecting structure from separating.

棒体の連結部を構成する前記操作棒１２の連結部２４は、操作棒本体２０より細い第１連結部４０が操作棒本体２０に連結される側に形成され、かつ前記第１連結部４０の先端工具１４側に前記第１連結部４０より太い第２連結部４２が連設された芯部材４４等により構成されている。The connecting portion 24 of the operating rod 12, which constitutes the connecting portion of the rod body, is composed of a core member 44 in which a first connecting portion 40, which is thinner than the operating rod main body 20, is formed on the side where it is connected to the operating rod main body 20, and a second connecting portion 42, which is thicker than the first connecting portion 40, is connected to the tip tool 14 side of the first connecting portion 40.

操作棒本体２０の（操作棒側の）連結部２４を構成する芯部材４４は、操作棒取付部材を構成する（第１）操作棒取付部材２６並びに固定ピン２６ａ及び固定ピン２６ｂ）により、操作棒本体２０と連結されている。The core member 44 constituting the connecting portion 24 (on the operating rod side) of the operating rod main body 20 is connected to the operating rod main body 20 by the (first) operating rod mounting member 26 and the fixing pins 26a and 26b which constitute the operating rod mounting member.

（第１）操作棒取付部材２６及び芯部材４４は、この実施の形態においては、図３（Ｃ）において示すように、操作棒本体２０の先端側に設けられた凹み部２０ａに嵌め込まれ、固定ピン２６ａ及び固定ピン２６ｂで固定されている。
芯部材４４の第１連結部４０は、（第１）操作棒取付部材２６の周囲にはめ込まれて操作棒本体２０の先端に設けられた凹み部２０ａに嵌め込まれ、操作棒本体２０に固定されている。 (1) In this embodiment, the operating rod mounting member 26 and the core member 44 are fitted into a recess 20a provided on the tip side of the operating rod body 20, as shown in FIG. 3(C), and are fixed by fixing pins 26a and 26b.
The first connecting portion 40 of the core member 44 is fitted around the (first) operating rod mounting member 26 and fitted into a recessed portion 20 a provided at the tip of the operating rod body 20 , and is fixed to the operating rod body 20 .

（操作棒側の）連結部２４は、この実施の形態においては、第１連結部４０及び第２連結部４２を構成する芯部材４４を備えている。
芯部材４４は、中空円筒状であり、前記操作棒取付部材を構成する（第１）操作棒取付部材２６及び（第２）操作棒取付部材２８の周囲に、配設されている。 In this embodiment, the connecting portion 24 (on the operating rod side) is provided with a core member 44 that constitutes a first connecting portion 40 and a second connecting portion 42 .
The core member 44 has a hollow cylindrical shape, and is disposed around the (first) operating rod mounting member 26 and the (second) operating rod mounting member 28 that constitute the operating rod mounting members.

芯部材４４は、この実施の形態においては、手元側が、操作棒本体２０に取り付けられるように操作棒本体２０より細い円柱状部で形成された第１連結部４０を構成し、先端側が、手元側の細い第１連結部４０より太く形成された太い円柱状部で形成された第２連結部４２を構成している。In this embodiment, the core member 44 constitutes a first connecting portion 40 on the proximal side formed of a cylindrical portion thinner than the operating rod body 20 so as to be attached to the operating rod body 20, and a second connecting portion 42 on the tip side formed of a thick cylindrical portion thicker than the thin first connecting portion 40 on the proximal side.

芯部材４４は、第２連結部材８０の第２連結部８４に設けられた空洞部に形成された棒体側連結部取り付け孔９４に嵌挿される形状を備え、この実施の形態においては前記空洞部内を摺動できる円筒状に構成されている。The core member 44 has a shape that is inserted into the rod side connecting portion attachment hole 94 formed in a hollow portion provided in the second connecting portion 84 of the second connecting member 80, and in this embodiment is configured in a cylindrical shape that can slide within the hollow portion.

芯部材４４は、長手方向に穿設された中空円環状の中空部４６を有している。
中空部４６は、その略中央において、細長くくびれた第１中空部４６ａが形成され、その第１中空部４６ａより先端側において、第１中空部４６ａより長い直径を備えた比較的太い第２中空部４６ｂが形成されている。
更に、中空部４６は、第１中空部４６ａより手元側において、第１中空部４６ａより長い直径を備えた比較的太い第３中空部４６ｃが形成されている。 The core member 44 has a hollow annular portion 46 drilled in the longitudinal direction.
The hollow portion 46 has a first hollow portion 46a that is elongated and narrowed at approximately the center, and a second hollow portion 46b that is relatively thick and has a longer diameter than the first hollow portion 46a is formed on the tip side of the first hollow portion 46a.
Furthermore, the hollow portion 46 has a third hollow portion 46c that is relatively thick and has a diameter longer than that of the first hollow portion 46a, formed on the proximal side of the first hollow portion 46a.

芯部材４４は、中空部４６の第３中空部４６ｃに、操作棒本体２０に取り付けるための操作棒取り付け部材（（第１）操作棒取付部材２６）が配設されている。
操作棒取付部材（（第１）操作棒取付部材２６）は、操作棒本体２０の先端に固定されており、（第１）操作棒取付部材２６の周囲に、芯部材４４の第３中空部４６ｃが嵌め込まれて取り付けられている。
（第２）操作棒取付部材２８は、中空部４６内に嵌挿されて、その手元側が第３中空部４６ｃの中に位置し、そこより先端側が第１中空部４６ａの中に摺動自在に嵌め込まれ、更に、それより先端側が第２中空部４６ｂの中を先端側に伸びて柱状の芯部材取り付け部９６と連結されている。
この実施の形態においては、（第２）操作棒取付部材２８は、円柱状棒体であり、手元側が第１中空部４６ａよりその直径が太い頭部を備え、その先端側が第１中空部４６ａとほぼその直径が同じである棒状体を備えている。従って、第２中空部４６ｂは、（第２）操作棒取付部材２８との間に中空部を残しており、その中に第２弾発部材７６を嵌装できるように構成されている。 The core member 44 has an operating rod attachment member ((first) operating rod attachment member 26) for attachment to the operating rod body 20 disposed in the third hollow portion 46c of the hollow portion 46.
The operating rod mounting member (the first operating rod mounting member 26) is fixed to the tip of the operating rod main body 20, and the third hollow portion 46c of the core member 44 is fitted around and attached to the (first) operating rod mounting member 26.
(2) The operating rod mounting member 28 is inserted into the hollow portion 46, with its proximal end positioned within the third hollow portion 46c, and its tip end fitted freely into the first hollow portion 46a, and furthermore, the tip end extends through the second hollow portion 46b toward the tip end and is connected to the columnar core member mounting portion 96.
In this embodiment, the (second) operating rod mounting member 28 is a cylindrical rod body, and has a head portion with a diameter larger than that of the first hollow portion 46a at the proximal side, and a rod-shaped body with a diameter almost the same as that of the first hollow portion 46a at the distal end side. Therefore, the second hollow portion 46b is configured to leave a hollow portion between the (second) operating rod mounting member 28 and the second resilient member 76 can be fitted therein.

棒体側の連結部と被連結部側の連結部とは、一方に凸部を構成する固定手段１６たる第１の固定凸部６０が形成され、他方に凹部を構成する固定手段１６たる第１の固定溝９０が形成されており、その凸部と凹部とが組み合わさって連結されるように構成されている。The connecting portion on the rod body side and the connecting portion on the connected portion side are configured such that a first fixing convex portion 60 serving as fixing means 16 constituting a convex portion is formed on one side, and a first fixing groove 90 serving as fixing means 16 constituting a concave portion is formed on the other side, and the convex portion and the concave portion are combined to connect.

前記固定手段１６は、前記棒体側の連結部に形成された、分離防止手段を構成する第１の固定凸部（ピン）６０により構成され、
前記第２連結部材８０に形成された固定手段又は芯部材４４に形成された固定手段１６は、前記芯部材４４及び／又は第２連結部材８０において、対応した位置に形成された、曲がりくねった分離防止手段を構成する固定溝たる第１の固定溝９０により構成されている。 The fixing means 16 is constituted by a first fixing protrusion (pin) 60 which is formed on the connecting portion on the rod body side and constitutes a separation prevention means,
The fixing means formed on the second connecting member 80 or the fixing means 16 formed on the core member 44 is constituted by a first fixing groove 90, which is a fixing groove constituting a tortuous separation prevention means, formed at a corresponding position on the core member 44 and/or the second connecting member 80.

芯部材４４は、この実施の形態においては、第２連結部４２の側において固定手段１６を構成する第１の固定凸部（ピン）６０が取り付けられており、また、第１連結部４０の側においてその周囲に抑止手段１８を構成する弾発部材７０が介装されている。In this embodiment, the core member 44 has a first fixing protrusion (pin) 60 that constitutes the fixing means 16 attached to the second connecting portion 42 side, and a resilient member 70 that constitutes the restraining means 18 is interposed around it on the first connecting portion 40 side.

（操作棒側の）連結部２４は、操作棒本体２０の先端においてその中心に固定された芯部材４４を備えており、その芯部材４４の周囲には第１連結部材５０が配設されている。
更に、（操作棒側の）連結部２４は、芯部材４４の手元側においてその周囲に、操作棒１２の手元側より先端工具１４側に向けて弾発するように形成されたコイルバネなどの弾発部材７０で構成された抑止手段１８が配設されている。
この第１の実施の形態においては、第１連結部材５０の手元側には弾発部材７０の先端側を止めるための弾発部材取り付け部７２が形成されている。
更に、操作棒１２の操作棒本体２０は、第１連結部材５０の手元側の外表面と向き合う側において、その先端側に、弾発部材７０の後端側を止めるための弾発部材取り付け部７４が形成されている。
抑止手段１８を構成する弾発部材７０は、操作棒１２に先端工具１４を取り付けたとき、第１連結部材５０を、被連結部を構成する第２連結部材８０側に付勢するように構成されている。 The connecting portion 24 (on the operating rod side) has a core member 44 fixed to the center at the tip of the operating rod body 20, and a first connecting member 50 is disposed around the core member 44.
Furthermore, the connecting portion 24 (on the operating rod side) is provided with a restraining means 18 around the proximal side of the core member 44, which is composed of a resilient member 70 such as a coil spring that is formed so as to resiliently repel from the proximal side of the operating rod 12 toward the tip tool 14 side.
In the first embodiment, a resilient member attachment portion 72 for fixing the tip end of a resilient member 70 is formed on the proximal side of the first connecting member 50 .
Furthermore, the operating rod body 20 of the operating rod 12 has a resilient member mounting portion 74 formed on the tip side on the side facing the outer surface of the hand side of the first connecting member 50 for fastening the rear end side of the resilient member 70.
The resilient member 70 constituting the restraining means 18 is configured to urge the first connecting member 50 toward the second connecting member 80 constituting the connected portion when the tip tool 14 is attached to the operating rod 12.

抑止手段１８を構成する第１弾発部材７０は、ロック時、第１連結部材５０を先端側に押して、それに伴い第２連結部材８０を、先端側に押している。（タイプ１、３、４）When locked, the first resilient member 70 constituting the restraining means 18 pushes the first connecting member 50 toward the tip, which in turn pushes the second connecting member 80 toward the tip. (Types 1, 3, and 4)

抑止手段１８（弾発部材７０）の直径は、第１連結部材５０及び弾発部材取り付け部７４の直径より短く、第１連結部材５０及び弾発部材取り付け部７４より飛び出ることのないように構成されている。
それ故に、抑止手段１８が、使用時に、他の物品に当たる確率が極めて低い。 The diameter of the restraining means 18 (resilient member 70 ) is shorter than the diameters of the first connecting member 50 and the resilient member mounting portion 74 , and is configured so as not to protrude from the first connecting member 50 and the resilient member mounting portion 74 .
Therefore, there is a very low probability that the restraining means 18 will strike other items when in use.

前記第１連結部４０は、後述する第１連結部材５０の移動スペースを操作棒本体２０との間に形成するように構成され、前記第２連結部４２は、前記第１の固定凸部（ピン）６０が配設され、その周囲に（先端工具側の）連結部３２を構成する第２連結部材８０を嵌挿されるように構成されている。The first connecting portion 40 is configured to form a movement space between it and the operating rod body 20 for the first connecting member 50 described later, and the second connecting portion 42 is configured so that the first fixed protrusion (pin) 60 is disposed around which the second connecting member 80 constituting the connecting portion 32 (on the tip tool side) is inserted.

第１連結部材５０は、円環状であり、略円柱状の芯部材４４の周囲に嵌め装填されており、芯部材４４及び操作棒本体２０の長手方向に移動自在に構成されており、第１連結部材５０の手元側と操作棒本体２０の先端側との間に介装された弾発部材７０により、先端側に弾発されるように構成されている。
第１の固定凸部（ピン）６０は、（操作棒側の）連結部２４の中央において、径方向にのびるように形成されている。
第１の固定凸部（ピン）６０は、先端工具１４に対し相対的に、操作棒１２の移動に伴い操作棒１２の軸方向に移動できるように形成され且つ操作棒１２の回転に伴い操作棒１２の周方向に回転できるように形成されている。 The first connecting member 50 is annular and fitted around the approximately cylindrical core member 44, and is configured to be freely movable in the longitudinal direction of the core member 44 and the operating rod main body 20, and is configured to be resilient toward the tip side by a resilient member 70 interposed between the proximal side of the first connecting member 50 and the tip side of the operating rod main body 20.
The first fixing protrusion (pin) 60 is formed in the center of the connecting portion 24 (on the operating rod side) so as to extend radially.
The first fixed convex portion (pin) 60 is formed so as to be able to move in the axial direction of the operating rod 12 as the operating rod 12 moves, relative to the tip tool 14, and so as to be able to rotate in the circumferential direction of the operating rod 12 as the operating rod 12 rotates.

（先端工具側の）連結部３２は、操作棒１２に取り付けられる被取付部を構成しており、操作棒１２の側の連結部２４を連結できるように形成された第２連結部材８０が配設されている。
第２連結部材８０は、操作棒１２に連結される側の領域に、操作棒１２の側の連結部２４に配設された前記第１の固定凸部（ピン）６０を停止させる固定手段１６たる第１の固定溝９０が形成されている。第１の固定溝９０は、第１の固定凸部（ピン）６０を嵌め入れ、（操作棒側の）連結部２４と（先端工具側の）連結部３２とを連結したときに第１の固定凸部（ピン）６０を固定する固定手段１６を構成している。 The connecting portion 32 (on the tip tool side) constitutes a mounting portion that is attached to the operating rod 12, and a second connecting member 80 is provided that is formed so as to be able to connect the connecting portion 24 on the operating rod 12 side.
The second connecting member 80 is formed, in a region on the side connected to the operating rod 12, with a first fixing groove 90 serving as fixing means 16 for stopping the first fixing protrusion (pin) 60 disposed in the connecting portion 24 on the operating rod 12 side. The first fixing groove 90 constitutes the fixing means 16 for fixing the first fixing protrusion (pin) 60 when the connecting portion 24 (on the operating rod side) and the connecting portion 32 (on the tool tip side) are connected by fitting the first fixing protrusion (pin) 60 therein.

第１連結部材５０と第２連結部材８０とは、その外形がほぼ同一形状または近似した形状であり、この実施の形態においては、断面円形状の筒形状であり、外表面の直径は同一または近似した寸法を備えている。
従って、第２連結部材８０と第１連結部材５０との境界には、殆んど段差がなく、他のものに当たる確率が極めて低い。 The first connecting member 50 and the second connecting member 80 have almost the same or similar outer shapes; in this embodiment, they are cylindrical with a circular cross-section, and the diameters of their outer surfaces have the same or similar dimensions.
Therefore, there is almost no step at the boundary between the second connecting member 80 and the first connecting member 50, and the probability of hitting something else is extremely low.

第１連結部材５０と第２連結部材８０とは、それらが接し合う面が密に接し合い、第１連結部材５０は、抑止手段１８（弾発部材７０）の付勢力により第２連結部材８０を押圧するように構成されている。
この実施の形態においては、第１連結部材５０の先端面５０Ｅは、軸方向に直交する平面であり、第２連結部材８０の後端面８０Ｅは、軸方向に直交する平面である。従って、前記第１連結部材５０の先端面５０Ｅと第２連結部材８０の後端面８０Ｅとは、密接する。 The first connecting member 50 and the second connecting member 80 are configured so that their contacting surfaces are in close contact with each other, and the first connecting member 50 is configured to press the second connecting member 80 by the biasing force of the restraining means 18 (resilient member 70).
In this embodiment, the tip surface 50E of the first connecting member 50 is a plane perpendicular to the axial direction, and the rear end surface 80E of the second connecting member 80 is a plane perpendicular to the axial direction. Therefore, the tip surface 50E of the first connecting member 50 and the rear end surface 80E of the second connecting member 80 are in close contact with each other.

第１連結部材５０の後端の弾発部材取り付け部７２は、弾発部材取り付け部７４と対向する面が軸方向と直交する平面であり、一方、弾発部材取り付け部７４の先端の対向面は、軸方向と直交する平面であり、それらの間に挟持された抑止手段１８（弾発部材７０）が第１連結部材５０を軸方向に平行に付勢することができるように構成されている。
The resilient member mounting portion 72 at the rear end of the first connecting member 50 has a surface facing the resilient member mounting portion 74 which is a plane perpendicular to the axial direction, while the opposing surface at the tip of the resilient member mounting portion 74 is a plane perpendicular to the axial direction, and is configured so that the restraining means 18 (resilient member 70) sandwiched between them can bias the first connecting member 50 parallel to the axial direction.

抑止手段１８（弾発部材７０）の直径は、第１連結部材５０及び弾発部材取り付け部７４の直径より短く、第１連結部材５０及び弾発部材取り付け部７４より飛び出ることのないように構成されている。 The diameter of the restraining means 18 (resilient member 70) is shorter than the diameter of the first connecting member 50 and the resilient member mounting portion 74, and is configured so as not to protrude from the first connecting member 50 and the resilient member mounting portion 74.

第１の固定溝９０は、操作棒１２側に開口した第１の溝部９０Ａと、第１の溝部９０Ａに続いて開口した第２の溝部９０Ｂと、第２の溝部９０Ｂに続いて開口した第３の溝部９０Ｃとを有している。第１の溝部９０Ａは、長手方向にのびており、第２の溝部９０Ｂは周方向にのびており、第３の溝部９０Ｃは長手方向にのびて袋小路になっている。
第１の固定溝９０は、平面視Ｌ字型に形成されており、操作棒１２に先端工具１４を取り付けたとき、第１の固定凸部（ピン）６０が第３の溝部９０Ｃに停止して移動しないように構成されている。
第１の固定溝９０は、嵌り込んだ第１の固定凸部（ピン）６０の頭部が若干突出する深さと、前記嵌り込んだ第１の固定凸部（ピン）６０の軸部が移動することができる幅とを備えている。 The first fixing groove 90 has a first groove portion 90A that opens toward the operating rod 12, a second groove portion 90B that opens subsequent to the first groove portion 90A, and a third groove portion 90C that opens subsequent to the second groove portion 90B. The first groove portion 90A extends in the longitudinal direction, the second groove portion 90B extends in the circumferential direction, and the third groove portion 90C extends in the longitudinal direction and forms a dead end.
The first fixing groove 90 is formed in an L-shape when viewed in a plane, and is configured so that when the tip tool 14 is attached to the operating rod 12, the first fixing protrusion (pin) 60 stops in the third groove portion 90C and does not move.
The first fixing groove 90 has a depth that allows the head of the fitted first fixing protrusion (pin) 60 to protrude slightly, and a width that allows the shaft portion of the fitted first fixing protrusion (pin) 60 to move.

以上の構成により、第２連結部材８０は、第３の溝部９０Ｃの溝底において、操作棒本体２０に連結された第１連結部４０の第２連結部４２において、径方向に突き出し固定された固定手段１６（第１の固定凸部（ピン）６０）を、弾発部材７０及び第２弾発部材７６の付勢力によって先端側（被取付部）に向けて押圧して第３の溝部９０Ｃと固定手段１６（第１の固定凸部（ピン）６０）とを噛み合わせて、第２連結部材８０がロック解除する方向に移動しない。With the above configuration, the second connecting member 80 presses the fixing means 16 (first fixing protrusion (pin) 60) which protrudes radially and is fixed at the second connecting part 42 of the first connecting part 40 connected to the operating rod main body 20 at the bottom of the third groove portion 90C toward the tip side (mounted part) by the biasing force of the resilient member 70 and the second resilient member 76, engaging the third groove portion 90C with the fixing means 16 (first fixing protrusion (pin) 60), so that the second connecting member 80 does not move in the direction of unlocking.

前記第１の固定凸部（ピン）６０は、第１連結部材５０の径方向に突き出し設けられ、
前記第１の固定溝９０は、前記嵌り込んだ第１の固定凸部（ピン）６０の頭部が若干突出する深さと、前記嵌り込んだ第１の固定凸部（ピン）６０の軸部が移動することができる幅とを備えている。 The first fixing protrusion (pin) 60 is provided to protrude in the radial direction of the first connecting member 50,
The first fixing groove 90 has a depth that allows the head of the fitted first fixing protrusion (pin) 60 to protrude slightly, and a width that allows the shaft portion of the fitted first fixing protrusion (pin) 60 to move.

第１の溝部９０Ａは、固定手段１６（第１の固定凸部（ピン）６０）を、先端側に進められるように伸びており、即ち、操作棒１２を先端工具１４に連結する方向に向けて伸びており、この実施の形態においては、軸線方向に平行な溝で構成されている。The first groove portion 90A extends so that the fixing means 16 (first fixing protrusion (pin) 60) can be advanced toward the tip side, i.e., extends in the direction in which the operating rod 12 is connected to the tip tool 14, and in this embodiment is configured as a groove parallel to the axial direction.

第２の溝部９０Ｂは、第１の溝部９０Ａから径方向に進んだ固定手段１６（第１の固定凸部（ピン）６０）が再び第１の溝部９０Ａに逆戻りしない位置まで進められる長さを備えており、この実施の形態においては、軸線方向と直交する溝で構成されている。
The second groove portion 90B has a length that allows the fixing means 16 (first fixing protrusion (pin) 60) that has advanced radially from the first groove portion 90A to a position where it will not return back to the first groove portion 90A, and in this embodiment, is configured as a groove perpendicular to the axial direction.

第１の溝部９０Ａと第２の溝部９０Ｂと第３の溝部９０Ｃとは、近似した幅を備えた溝であり、それぞれがＬ字型に屈曲した溝で構成されている。
それらの幅と深さは、第１の固定凸部（ピン）６０及び第２の固定凸部（プランジャ）６２を嵌めた状態で溝の伸びる方向に進められるように構成されている。 The first groove portion 90A, the second groove portion 90B, and the third groove portion 90C are grooves having similar widths, and each is configured as an L-shaped bent groove.
The width and depth of these are configured so that they can be advanced in the direction in which the groove extends with the first fixing protrusion (pin) 60 and the second fixing protrusion (plunger) 62 fitted therein.

第３の溝部９０Ｃは、固定手段１６（第１の固定凸部（ピン）６０）を、手元側に進められるように伸びており、即ち、操作棒１２を先端工具１４に連結する方向とは反対側に向けて伸びており、第２の溝部９０Ｂに沿って径方向に移動しない位置まで進んだ固定手段１６（第１の固定凸部（ピン）６０）がそれ以上連結する方向とは反対側に向けて進まないように、袋小路になっている。The third groove portion 90C extends so that the fixing means 16 (first fixing protrusion (pin) 60) can be advanced toward the hand side, i.e., extends in the opposite direction to the direction in which the operating rod 12 is connected to the tip tool 14, and forms a dead end so that the fixing means 16 (first fixing protrusion (pin) 60) that has advanced to a position where it will no longer move radially along the second groove portion 90B will not advance any further in the opposite direction to the direction of connection.

固定手段１６（第１の固定凸部（ピン）６０）は、第２連結部４２を構成する凹み部に固定されており、第２連結部４２を構成する凹み部の外表面より突き出た部分が、固定凸部として機能する部分である。The fixing means 16 (first fixing protrusion (pin) 60) is fixed to a recess that constitutes the second connecting portion 42, and the portion that protrudes from the outer surface of the recess that constitutes the second connecting portion 42 is the portion that functions as the fixing protrusion.

第２連結部材８０は、（先端）工具部３０に取り付けられ且つ操作棒１２に連結される被取付部を構成するものであり、（先端）工具部３０に取り付けられる先端工具取り付け部である第１連結部８２と、前記先端工具取り付け部である第１連結部８２より太い第２連結部８４とを備えている。
第１連結部８２は、（先端）工具部３０の取り付け部に嵌合され、（先端）工具部３０に適宜な固定具、例えばピン等により固定される。
第２連結部８４は、中空状の芯部材取り付け部を構成しており、芯部材４４に嵌装される棒体側連結部取り付け孔９４が形成されている。
第２連結部８４は、棒体側連結部取り付け孔９４の中に、柱状の芯部材取り付け部９６が設けられている。
柱状の芯部材取り付け部９６は、芯部材４４の第２連結部４２と（第２）操作棒取付部材２８との間の円環状の中空部４６に嵌挿されて、前記（第２）操作棒取付部材２８の先端側に接して連接されている。 The second connecting member 80 constitutes an attachment portion that is attached to the (tip) tool portion 30 and connected to the operating rod 12, and includes a first connecting portion 82 which is an end tool attachment portion that is attached to the (tip) tool portion 30, and a second connecting portion 84 which is thicker than the first connecting portion 82 which is the end tool attachment portion.
The first connecting portion 82 is fitted into the mounting portion of the (tip) tool portion 30 and fixed to the (tip) tool portion 30 by an appropriate fastener, such as a pin.
The second connecting portion 84 constitutes a hollow core member mounting portion, and has a rod body side connecting portion mounting hole 94 formed therein into which the core member 44 is fitted.
The second connecting portion 84 has a columnar core member mounting portion 96 provided in the rod body side connecting portion mounting hole 94 .
The columnar core member mounting portion 96 is inserted into the annular hollow portion 46 between the second connecting portion 42 of the core member 44 and the (second) operating rod mounting member 28, and is connected in contact with the tip side of the (second) operating rod mounting member 28.

（第２）操作棒取付部材２８は、柱状の芯部材取り付け部９６と直列に並んで、芯部材４４の第２連結部４２において取り付けられている。
柱状の芯部材取り付け部９６は、第２連結部材８０の手元側の部位に突き当たるように構成されており、柱状の芯部材取り付け部９６の手元側の端部と前記中空部４６の第１中空部４６ａの境界壁部との間に存在する第２中空部４６ｂに、第２弾発部材７６が配設されている。第２弾発部材７６は、柱状の芯部材取り付け部９６を手元側又は先端側に向けて弾発するように形成されたコイルバネ等により形成されている。 The (second) operating rod mounting member 28 is aligned in series with the columnar core member mounting portion 96 and is attached to the second connecting portion 42 of the core member 44 .
The columnar core member attachment portion 96 is configured to abut against a proximal portion of the second connecting member 80, and a second resilient member 76 is disposed in a second hollow portion 46b that exists between the proximal end of the columnar core member attachment portion 96 and the boundary wall portion of the first hollow portion 46a of the hollow portion 46. The second resilient member 76 is formed of a coil spring or the like that is formed to resiliently resilient the columnar core member attachment portion 96 toward the proximal side or the tip side.

抑止手段１８を構成する第２弾発部材７６は、芯部材取り付け部９６及び第２連結部８４を、ロック時縮んで、先端側に押している。（タイプ１～３）
第２弾発部材７６は、芯部材取り付け部９６及び第２連結部８４を、常時、先端側に押しており、ロック状態では、軽く縮んでいる状態で、解除動作で第２連結部材８０を手前側に引いたときに、更に縮んだ状態になる。 The second resilient member 76 constituting the restraining means 18 contracts when locked, and pushes the core member attachment portion 96 and the second connecting portion 84 toward the tip side. (Types 1 to 3)
The second resilient member 76 constantly presses the core member attachment portion 96 and the second connecting portion 84 toward the tip, and in the locked state is lightly contracted, and when the second connecting member 80 is pulled toward the front during the release operation, it becomes further contracted.

柱状の芯部材取り付け部９６は、図３（Ｂ）において示すように、第２連結部４２の中空部４６に嵌め込まれ、（第２）操作棒取付部材２８に抜け止めネジ２８ａで固定されている。As shown in Figure 3 (B), the columnar core member mounting portion 96 is fitted into the hollow portion 46 of the second connecting portion 42 and fixed to the (second) operating rod mounting member 28 with an anti-slip screw 28a.

柱状の芯部材取り付け部９６は、第２連結部４２に設けられた空洞部に形成された第２中空部４６ｂに嵌挿される形状を備え、この実施の形態においては前記空洞部内を摺動できる円柱状に構成されている。
柱状の芯部材取り付け部９６は、手元側に、（第２）操作棒取付部材２８を嵌合できるように構成された有底穴が、穿設されており、柱状の芯部材取り付け部９６に（第２）操作棒取付部材２８が連結されるように構成されている。 The columnar core member mounting portion 96 has a shape that is inserted into the second hollow portion 46b formed in the hollow portion provided in the second connecting portion 42, and in this embodiment is configured in a cylindrical shape that can slide within the hollow portion.
The columnar core member mounting portion 96 has a bottomed hole drilled on the proximal side into which the (second) operating rod mounting member 28 can be fitted, and is configured so that the (second) operating rod mounting member 28 can be connected to the columnar core member mounting portion 96.

（第２）操作棒取付部材２８は、柱状の芯部材取り付け部９６より手元側に延びて、その周囲に第２弾発部材７６が介装されており、第３中空部４６ｃに突き出た頭部が第１中空部４６ａに固定されており、第２中空部４６ｂ内に、架け渡されている。 (2) The operating rod mounting member 28 extends from the columnar core member mounting portion 96 toward the hand side, with the second resilient member 76 interposed around it, and its head protruding into the third hollow portion 46c is fixed to the first hollow portion 46a and is bridged within the second hollow portion 46b.

第１連結部材５０と第２連結部材８０とは、その外形がほぼ同一形状または近似した形状であり、この実施の形態においては、断面円形状の筒形状であり、外表面の直径は同一または近似した寸法を備えている。
従って、第２連結部材８０と第１連結部材５０との境界には、殆んど段差がなく、他のものに当たる確率が極めて低い。 The first connecting member 50 and the second connecting member 80 have almost the same or similar outer shapes, and in this embodiment, they are cylindrical with a circular cross section, and the diameters of their outer surfaces have the same or similar dimensions.
Therefore, there is almost no step at the boundary between the second connecting member 80 and the first connecting member 50, and the probability of hitting something else is extremely low.

第１連結部材５０と第２連結部材８０とは、それらが接し合う面が密に接し合い、第１連結部材５０は、抑止手段１８（弾発部材７０）の付勢力により均一な力で第２連結部材８０を押圧するように構成されている。The first connecting member 50 and the second connecting member 80 are configured so that their contacting surfaces are in close contact with each other, and the first connecting member 50 is configured to press the second connecting member 80 with a uniform force due to the biasing force of the restraining means 18 (resilient member 70).

第１連結部材５０の後端の弾発部材取り付け部７２は、弾発部材取り付け部７４と対向する面が軸方向と直交する平面であり、一方、弾発部材取り付け部７４の先端の対向面は、軸方向と直行する平面であり、それらの間に挟持された抑止手段１８（弾発部材７０）が第１連結部材５０を軸方向に平行な力により付勢することができるように構成されている。The resilient member mounting portion 72 at the rear end of the first connecting member 50 has a surface facing the resilient member mounting portion 74 that is a plane perpendicular to the axial direction, while the opposing surface at the tip of the resilient member mounting portion 74 is a plane perpendicular to the axial direction, and is configured so that the restraining means 18 (resilient member 70) sandwiched between them can urge the first connecting member 50 with a force parallel to the axial direction.

第１連結部材５０は、操作棒１２の軸方向に移動可能に操作棒１２に配設されており、操作棒１２に先端工具１４を取り付けたとき、第２連結部材８０の操作棒１２側の領域に固定されて第２連結部材８０の移動を制御して、前記（操作棒側の）連結部２４が前記第２連結部材８０の第１の固定溝９０から外れないように形成されている。
第１連結部材５０は、第２連結部材８０の移動を制御するために、固定手段１６を有している。 The first connecting member 50 is arranged on the operating rod 12 so as to be movable in the axial direction of the operating rod 12, and when a tip tool 14 is attached to the operating rod 12, it is fixed to the area of the second connecting member 80 on the operating rod 12 side to control the movement of the second connecting member 80, and is formed so that the connecting portion 24 (on the operating rod side) does not come off the first fixing groove 90 of the second connecting member 80.
The first connecting member 50 has a fixing means 16 for controlling the movement of the second connecting member 80 .

芯部材４４の固定手段１６は、第１連結部材５０が装填された、第１連結部材５０が介装された領域の外周部に、雄ネジ部４８が設けられており、一方、第１連結部材５０の固定手段１６は、芯部材４４に介装された領域の筒内に、雌ネジ部５８が設けられている。
第１連結部材５０の固定手段１６は、芯部材４４の固定手段１６を螺合され、第１連結部材５０を回すことにより操作棒１２の長手方向に移動させることができ、第１連結部材５０により第２連結部材８０を押圧するに適する位置に停止させることができる。 The fixing means 16 of the core member 44 has a male thread portion 48 provided on the outer periphery of the area in which the first connecting member 50 is interposed, in which the first connecting member 50 is loaded, while the fixing means 16 of the first connecting member 50 has a female thread portion 58 provided within the tube in the area in which the core member 44 is interposed.
The fixing means 16 of the first connecting member 50 is screwed into the fixing means 16 of the core member 44, and by turning the first connecting member 50, it can be moved in the longitudinal direction of the operating rod 12, and can be stopped at a position suitable for pressing the second connecting member 80 by the first connecting member 50.

この実施の形態においては、操作棒１２の操作棒本体２０は、断面略円形の棒体であり、芯部材４４の第１連結部４０及び第２連結部４２は、断面略円形の棒状体であり、第１連結部材５０は、断面略円形の環状体であり、第２連結部材８０は、断面略円形の環状体である。
そして、これら操作棒１２の操作棒本体２０、芯部材４４、第１連結部材５０及び第２連結部材８０は、棒体の軸線方向に伸びる中心線を同心として、並列されている。
第１連結部材５０は、芯部材４４の第２連結部４２の周囲に配設され、第２連結部材８０は、芯部材４４の先端側の周囲に配設され、第１連結部材５０の先端側の端縁と第２連結部材８０の手元側の端縁とは、対向するように形成されている。 In this embodiment, the operating rod body 20 of the operating rod 12 is a rod body having an approximately circular cross-section, the first connecting portion 40 and the second connecting portion 42 of the core member 44 are rod-shaped bodies having an approximately circular cross-section, the first connecting member 50 is an annular body having an approximately circular cross-section, and the second connecting member 80 is an annular body having an approximately circular cross-section.
The operating rod body 20, the core member 44, the first connecting member 50 and the second connecting member 80 of the operating rod 12 are arranged in parallel with each other, with the center line extending in the axial direction of the rod body being concentric.
The first connecting member 50 is arranged around the second connecting portion 42 of the core member 44, and the second connecting member 80 is arranged around the tip side of the core member 44, and the tip side edge of the first connecting member 50 and the proximal side edge of the second connecting member 80 are formed to face each other.

次に、操作方法について、実施の形態にかかる連結構造１０を備えた絶縁操作棒１２を利用し、架空配電線バイパス回路を形成するため、絶縁操作棒１２によりその先端に連結された間接活線用の先端工具１４を操作することを想定して、以下説明する。
まず、図１及び２に示すように、作業者が間接活線工事用の先端工具１４を絶縁操作棒１２の先端部に装着するために、連結構造１０を構成する絶縁操作棒１２の（操作棒側の）連結部２４と先端工具１４の（先端工具側の）連結部３２と連結する。
具体的には、操作棒１２側の（操作棒側の）連結部２４の軸線と先端工具１４側の（先端工具側の）連結部３２の軸線とを一致させ、第１の固定凸部（ピン）６０を第１の固定溝９０の第１の溝部９０Ａと位置合わせする。
次に、操作棒１２を先端工具１４側に移動させて、第１の固定凸部（ピン）６０を第１の固定溝９０の第２の溝部９０Ｂまで挿入し、第２の溝部９０Ｂの先端工具１４側の溝壁まで到達すれば、操作棒１２を円周方向に回して、第１の固定凸部（ピン）６０を第２の溝部９０Ｂの溝に沿って第３の溝部９０Ｃに向けて進める。
連結構造１０が第３の溝部９０Ｃの溝口まで到達したとき、すなわち第２の溝部９０Ｂの行き止まりまで到達したとき、操作棒１２を先端工具１４側より手元側に引き戻し、第１の固定凸部（ピン）６０を第３の溝部９０Ｃに嵌め入れる。
そこで、第１連結部材５０を回すことにより、第１連結部材５０の雄ネジ部４８と芯部材４４の雌ネジ部５８との作用により第１連結部材５０を操作棒１２の長手方向に移動させて、第１連結部材５０により第２連結部材８０を押圧する位置まで移動させて、操作棒１２の（操作棒側の）連結部２４と先端工具１４の（先端工具側の）連結部３２とを強固に連結させる。 Next, the operation method will be described below assuming that an insulated operating rod 12 equipped with the connecting structure 10 according to the embodiment is used to operate an indirect live line tip tool 14 connected to the tip of the insulated operating rod 12 in order to form an overhead distribution line bypass circuit.
First, as shown in Figures 1 and 2, in order for an operator to attach the tip tool 14 for indirect live-line work to the tip of the insulated operating rod 12, the connecting portion 24 (on the operating rod side) of the insulated operating rod 12 and the connecting portion 32 (on the tip tool side) of the tip tool 14, which constitute the connecting structure 10, are connected.
Specifically, the axis of the connecting portion 24 on the operating rod 12 side (the operating rod side) is aligned with the axis of the connecting portion 32 on the tip tool 14 side (the tip tool side), and the first fixing convex portion (pin) 60 is aligned with the first groove portion 90A of the first fixing groove 90.
Next, the operating rod 12 is moved toward the tip tool 14, and the first fixing convex portion (pin) 60 is inserted into the second groove portion 90B of the first fixing groove 90. When it reaches the groove wall on the tip tool 14 side of the second groove portion 90B, the operating rod 12 is rotated circumferentially, and the first fixing convex portion (pin) 60 is advanced along the groove of the second groove portion 90B toward the third groove portion 90C.
When the connecting structure 10 reaches the mouth of the third groove portion 90C, i.e., when it reaches the end of the second groove portion 90B, the operating rod 12 is pulled back from the tip tool 14 side toward the handle side, and the first fixing protrusion (pin) 60 is inserted into the third groove portion 90C.
Therefore, by turning the first connecting member 50, the action of the male threaded portion 48 of the first connecting member 50 and the female threaded portion 58 of the core member 44 moves the first connecting member 50 in the longitudinal direction of the operating rod 12, moving it to a position where it presses the second connecting member 80, thereby firmly connecting the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the tip tool side) of the tip tool 14.

次に、連結構造１０において、操作棒本体２０の（操作棒側の）連結部２４と工具部（先端工具部）３０の（先端工具側の）連結部３２とのロックを解除するときについて、主として図４に基づいて説明する。そのときは、第１連結部材５０を回して雄ネジ部４８と雌ネジ部５８との噛合を外して手元側に移動させる。そして、操作棒本体２０の（操作棒側の）連結部２４を先端側に移動させ（第２連結部材８０で第１連結部材５０を手元側に押して）固定手段１６を構成する第１の固定凸部（ピン）６０を第３の溝部９０Ｃより外し、操作棒１２を回して第１の固定凸部（ピン）６０を第２の溝部９０Ｂに沿って移動させ、第１の固定溝９０の第１の溝部９０Ａに位置したとき、手元側に操作棒１２を移動させて第１の固定凸部（ピン）６０を第１の固定溝９０から外すことにより、操作棒１２の（操作棒側の）連結部２４と先端工具１４の（先端工具側の）連結部３２とを分離することができる。Next, the unlocking of the connecting part 24 (on the operating rod side) of the operating rod body 20 and the connecting part 32 (on the tip tool side) of the tool part (tip tool part) 30 in the connecting structure 10 will be described mainly with reference to Figure 4. At that time, the first connecting member 50 is rotated to disengage the male threaded part 48 from the female threaded part 58 and move it toward the hand side. Then, the connecting portion 24 (on the operating rod side) of the operating rod main body 20 is moved toward the tip side (the first connecting member 50 is pushed toward the hand side with the second connecting member 80) to remove the first fixing convex portion (pin) 60 constituting the fixing means 16 from the third groove portion 90C, and the operating rod 12 is turned to move the first fixing convex portion (pin) 60 along the second groove portion 90B. When it is positioned in the first groove portion 90A of the first fixing groove 90, the operating rod 12 is moved toward the hand side to remove the first fixing convex portion (pin) 60 from the first fixing groove 90, thereby separating the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the hand side) of the tip tool 14.

（第２の実施の形態） (Second embodiment)

次に、第１の実施の形態の変形例である第２の実施の形態である連結構造について、主として図１０ないし図１５に基づいて説明する。
なお、第１の実施の形態の変形例である第２の実施の形態である連結構造の説明において、図１ないし図９図示の第１の実施の形態である連結構造１０と共通の構成要件・要素については、同じ符号を付して、共通の構成要件・要素についての説明を省略することとする。
以下、第１の実施の形態の変形例である連結構造の特徴ある構成要件・要素を中心に説明する。 Next, a connecting structure according to a second embodiment, which is a modification of the first embodiment, will be described with reference to mainly FIGS.
In addition, in describing the connecting structure of the second embodiment, which is a modified example of the first embodiment, the components and elements common to the connecting structure 10 of the first embodiment shown in Figures 1 to 9 will be given the same symbols, and descriptions of the common components and elements will be omitted.
The following description will focus on characteristic constituent elements and components of the connection structure which is a modification of the first embodiment.

本発明にかかる第２の実施の形態である連結構造１０は、棒体を構成する操作棒１２と前記操作棒１２に連結される被連結部を構成する先端工具１４の連結部位とを連結する連結構造である。The connecting structure 10, which is the second embodiment of the present invention, is a connecting structure that connects an operating rod 12 constituting a rod body and a connecting portion of a tip tool 14 constituting a connected part connected to the operating rod 12.

操作棒１２は、長尺円柱状の操作棒本体２０と、操作棒本体２０の後端すなわち手前側に付設された把持部２２と、操作棒本体２０の先端側すなわち先端工具１４に取り付けられる側の領域に形成された（操作棒側の）連結部２４とを備える。The operating rod 12 comprises a long cylindrical operating rod body 20, a gripping portion 22 attached to the rear end, i.e., the front side, of the operating rod body 20, and a connecting portion 24 (on the operating rod side) formed on the tip side of the operating rod body 20, i.e., the area on the side that is attached to the tip tool 14.

操作棒本体２０の（操作棒側の）連結部２４を構成する芯部材４４は、操作棒取付部材（（第１）操作棒取付部材２６並びに固定ピン２６ａ及び固定ピン２６ｂ）により、操作棒本体２０と連結されている。The core member 44 constituting the connecting portion 24 (on the operating rod side) of the operating rod main body 20 is connected to the operating rod main body 20 by an operating rod mounting member (the (first) operating rod mounting member 26 and the fixing pins 26a and 26b).

（第１）操作棒取付部材２６及び芯部材４４は、この実施の形態においては、図１２及び図１３において示すように、操作棒本体２０の先端側に設けられた凹み部２０ａに嵌め込まれ、固定ピン２６ａ及び固定ピン２６ｂで固定されている。
芯部材４４の第１連結部４０は、（第１）操作棒取付部材２６の周囲にはめ込まれて操作棒本体２０の先端に設けられた凹み部２０ａに嵌め込まれ、操作棒本体２０に固定されている。 (1) In this embodiment, the operating rod mounting member 26 and the core member 44 are fitted into a recess 20a provided on the tip side of the operating rod main body 20, as shown in Figures 12 and 13 , and are fixed by fixing pins 26a and 26b.
The first connecting portion 40 of the core member 44 is fitted around the (first) operating rod mounting member 26 and fitted into a recessed portion 20 a provided at the tip of the operating rod body 20 , and is fixed to the operating rod body 20 .

（操作棒側の）連結部２４は、この実施の形態においては、第１連結部４０及び第２連結部４２を構成する芯部材４４を備えている。
芯部材４４は、中空円筒状であり、前記操作棒取付部材（（第１）操作棒取付部材２６及び（第２）操作棒取付部材２８）の周囲に、配設されている。 In this embodiment, the connecting portion 24 (on the operating rod side) is provided with a core member 44 that constitutes a first connecting portion 40 and a second connecting portion 42 .
The core member 44 has a hollow cylindrical shape and is disposed around the operating rod mounting members (the (first) operating rod mounting member 26 and the (second) operating rod mounting member 28).

芯部材４４は、中空部４６の第３中空部４６ｃに、操作棒本体２０に取り付けるための操作棒取り付け部材（（第１）操作棒取付部材２６）が配設されている。
操作棒取付部材（（第１）操作棒取付部材２６）は、操作棒本体２０の先端に固定されており、（第１）操作棒取付部材２６の周囲に、芯部材４４の第３中空部４６ｃが嵌め込まれて取り付けられている。
（第２）操作棒取付部材２８は、中空部４６内に嵌挿されて、その手元側が第３中空部４６ｃの中に位置し、そこより先端側が第１中空部４６ａの中に摺動自在に嵌め込まれ、更に、それより先端側が第２中空部４６ｂの中を先端側に伸びて柱状の芯部材取り付け部９６と連結されている。
この実施の形態においては、（第２）操作棒取付部材２８は、円柱状棒体であり、手元側が第１中空部４６ａよりその直径が太い頭部を備え、その先端側が第１中空部４６ａとほぼその直径が同じである棒状体を備えている。従って、第２中空部４６ｂは、（第２）操作棒取付部材２８との間に中空部を残しており、その中に第２弾発部材を嵌装できるように構成されている。 The core member 44 has an operating rod attachment member ((first) operating rod attachment member 26) for attachment to the operating rod body 20 disposed in the third hollow portion 46c of the hollow portion 46.
The operating rod mounting member (the first operating rod mounting member 26) is fixed to the tip of the operating rod main body 20, and the third hollow portion 46c of the core member 44 is fitted around and attached to the (first) operating rod mounting member 26.
(2) The operating rod mounting member 28 is inserted into the hollow portion 46, with its proximal end located within the third hollow portion 46c, and its tip end fitted slidably into the first hollow portion 46a , and furthermore, the tip end extends through the second hollow portion 46b toward the tip end and is connected to the columnar core member mounting portion 96.
In this embodiment, the (second) operating rod mounting member 28 is a cylindrical rod body, with a head portion having a diameter larger than that of the first hollow portion 46a at the proximal side, and a rod-shaped body having a diameter substantially the same as that of the first hollow portion 46a at the distal end side. Therefore, the second hollow portion 46b is configured to leave a hollow portion between the (second) operating rod mounting member 28 and the second hollow portion 46b, so that the second resilient member can be fitted therein.

棒体側の連結部と被連結部側の連結部とは、一方に凸部６２ｃが形成され、他方に凹部９２ａが形成されており、その凸部６２ｃと凹部９２ａとが組み合わさって連結されるように構成されている。The connecting portion on the rod body side and the connecting portion on the connected part side have a convex portion 62c formed on one side and a concave portion 92a formed on the other side, and are configured so that the convex portion 62c and the concave portion 92a are combined and connected.

前記固定手段１６は、前記棒体側の連結部に形成された、分離防止手段を構成する第１の固定凸部（ピン）６０により構成され、
前記第２連結部材８０に形成された固定手段又は芯部材４４に形成された固定手段は、前記芯部材４４及び／又は第２連結部材８０において、対応した位置に形成された、曲がりくねった分離防止手段を構成する固定溝により構成されている。 The fixing means 16 is constituted by a first fixing protrusion (pin) 60 which is formed on the connecting portion on the rod body side and constitutes a separation prevention means,
The fixing means formed on the second connecting member 80 or the fixing means formed on the core member 44 are constituted by fixing grooves formed at corresponding positions on the core member 44 and/or the second connecting member 80, which constitute a tortuous separation prevention means.

芯部材４４は、この実施の形態においては、第２連結部４２の側において固定手段１６を構成する第１の固定凸部（ピン）６０が取り付けられている。なお、第１連結部４０側においてその周囲に抑止手段１８を構成する弾発部材７０が介装されても良い。In this embodiment, the core member 44 is provided with a first fixing protrusion (pin) 60 that constitutes the fixing means 16 on the side of the second connecting portion 42. A resilient member 70 that constitutes the restraining means 18 may be interposed around the first connecting portion 40.

（操作棒側の）連結部２４は、第１連結部材５０が配設されている。
（操作棒側の）連結部２４は、この第２の実施の形態においては、抑止手段１８を構成する弾発部材７０が配設されていないが、芯部材４４の手元側に配設しても良い。
第１連結部材５０の手元側には、弾発部材７０の先端側を止めるための弾発部材取り付け部７２が形成されている。
更に、操作棒１２の操作棒本体２０は、第１連結部材５０の手元側の外表面と向き合う側において、その先端側に、弾発部材７０の後端側を止めるための弾発部材取り付け部７４が形成されている。
抑止手段１８を構成する弾発部材７０は、操作棒１２に先端工具１４を取り付けたとき、第１連結部材５０を第２連結部材８０側に付勢するように構成するとよい。 A first connecting member 50 is disposed on the connecting portion 24 (on the operating rod side).
In the second embodiment, the connecting portion 24 (on the operating rod side) is not provided with the resilient member 70 constituting the restraining means 18 , but it may be provided on the proximal side of the core member 44 .
A resilient member attachment portion 72 for fixing the tip end of the resilient member 70 is formed on the proximal side of the first connecting member 50 .
Furthermore, the operating rod body 20 of the operating rod 12 has a resilient member mounting portion 74 formed on the tip side on the side facing the outer surface of the hand side of the first connecting member 50 for fastening the rear end side of the resilient member 70.
The resilient member 70 constituting the restraining means 18 may be configured to bias the first connecting member 50 toward the second connecting member 80 when the tip tool 14 is attached to the operating rod 12 .

（操作棒側の）連結部２４は、操作棒本体２０の先端においてその中心に固定された芯部材４４を備えており、その芯部材４４の周囲には第１連結部材５０が配設されている。
更に、（操作棒側の）連結部２４は、芯部材４４の手元側においてその周囲に、操作棒１２の手元側より先端工具１４側に向けて弾発するように形成されたコイルバネなどの弾発部材７０で構成された抑止手段１８が配設されている。
前記第１連結部４０は、後述する第１連結部材５０の移動スペースを操作棒本体２０との間に形成するように構成され、前記第２連結部４２は、前記第１の固定凸部（ピン）６０が配設され、その周囲に（先端工具側の）連結部３２を構成する第２連結部材８０を嵌挿されるように構成されている。 The connecting portion 24 (on the operating rod side) has a core member 44 fixed to the center at the tip of the operating rod body 20, and a first connecting member 50 is disposed around the core member 44.
Furthermore, the connecting portion 24 (on the operating rod side) is provided with a restraining means 18 around the proximal side of the core member 44, which is composed of a resilient member 70 such as a coil spring that is formed so as to resiliently repel from the proximal side of the operating rod 12 toward the tip tool 14 side.
The first connecting portion 40 is configured to form a movement space for the first connecting member 50 described later between it and the operating rod main body 20, and the second connecting portion 42 is configured to have the first fixing protrusion (pin) 60 arranged therearound and to fit and insert the second connecting member 80 constituting the connecting portion 32 (on the tip tool side).

第１連結部材５０は、円環状であり、略円柱状の芯部材４４の周囲に嵌め装填されており、芯部材４４及び操作棒本体２０の長手方向に螺動するように構成されている。第１連結部材５０の手元側と操作棒本体２０の先端側との間に介装された弾発部材７０（図示せず）により、先端側に弾発されるように構成されている。
第１の固定凸部（ピン）６０は、（操作棒側の）連結部２４の中央において、径方向にのびるように形成されている。
第１の固定凸部（ピン）６０は、先端工具１４に対し相対的に、操作棒１２の移動に伴い操作棒１２の軸方向に移動できるように形成され且つ操作棒１２の周方向に回転できるように形成されている。 The first connecting member 50 is annular, fitted around the substantially cylindrical core member 44, and configured to thread in the longitudinal direction of the core member 44 and the operating rod body 20. It is configured to be resilient toward the tip side by a resilient member 70 (not shown) interposed between the proximal side of the first connecting member 50 and the tip side of the operating rod body 20.
The first fixing protrusion (pin) 60 is formed in the center of the connecting portion 24 (on the operating rod side) so as to extend radially.
The first fixing convex portion (pin) 60 is formed so as to be able to move in the axial direction of the operating rod 12 as the operating rod 12 moves, relative to the tool bit 14, and is formed so as to be able to rotate in the circumferential direction of the operating rod 12.

（先端工具側の）連結部３２は、操作棒１２に取り付けられる被取付部を構成しており、操作棒１２の側の連結部２４を連結できるように形成された第２連結部材８０が配設されている。
第２連結部材８０は、操作棒１２に連結される側の領域に、操作棒１２の側の連結部２４に配設された前記第１の固定凸部（ピン）６０を停止させる第１の固定溝９０が形成されている。第１の固定溝９０は、第１の固定凸部（ピン）６０を嵌め入れ、（操作棒側の）連結部２４と（先端工具側の）連結部３２とを連結したときに第１の固定凸部（ピン）６０を固定する固定手段１６を構成している。 The connecting portion 32 (on the tip tool side) constitutes a mounting portion that is attached to the operating rod 12, and a second connecting member 80 is provided that is formed so as to be able to connect the connecting portion 24 on the operating rod 12 side.
The second connecting member 80 is formed, in a region on the side connected to the operating rod 12, with a first fixing groove 90 for stopping the first fixing protrusion (pin) 60 arranged on the connecting portion 24 on the operating rod 12 side. The first fixing groove 90 fits the first fixing protrusion (pin) 60 and constitutes a fixing means 16 for fixing the first fixing protrusion (pin) 60 when the connecting portion 24 (on the operating rod side) and the connecting portion 32 (on the tool tip side) are connected.

（第２）操作棒取付部材２８は、柱状の芯部材取り付け部９６と直列に並んで、芯部材４４の第２連結部４２において取り付けられている。
柱状の芯部材取り付け部９６は、第２連結部材８０の手元側の部位に突き当たるように構成されており、柱状の芯部材取り付け部９６の手元側の端部と前記中空部４６の第１中空部４６ａの境界壁部との間に存在する第２中空部４６ｂに、柱状の芯部材取り付け部９６を手元側又は先端側に向けて弾発するように形成されたコイルバネ等の第２弾発部材７６が配設されている。
この第２弾発部材７６は、省いてもよい。 The (second) operating rod mounting member 28 is aligned in series with the columnar core member mounting portion 96 and is attached to the second connecting portion 42 of the core member 44 .
The columnar core member mounting portion 96 is configured to abut against the proximal portion of the second connecting member 80, and a second resilient member 76 such as a coil spring is disposed in a second hollow portion 46b that exists between the proximal end of the columnar core member mounting portion 96 and the boundary wall portion of the first hollow portion 46a of the hollow portion 46. The second resilient member 76 is formed to resilient the columnar core member mounting portion 96 toward the proximal or tip side.
This second resilient member 76 may be omitted.

柱状の芯部材取り付け部９６は、図１０において示すように、第２連結部４２の中空部４６に嵌め込まれ、（第２）操作棒取付部材２８に抜け止めネジ２８ａで固定されている。As shown in Figure 10, the columnar core member mounting portion 96 is fitted into the hollow portion 46 of the second connecting portion 42 and fixed to the (second) operating rod mounting member 28 by a locking screw 28a.

更に、柱状の芯部材取り付け部９６は、その先端側において第２連結部材８０の棒体側連結部取り付け孔９４に穿設された凹み部に、先端工具１４側より操作棒１２側に向けて弾発するように形成されたコイルバネなど第３弾発部材９８が配設されている。
第３弾発部材９８は、柱状の芯部材取り付け部９６の先端側に固定されてもよく、又、（先端工具側の）連結部３２の中心に形成された凹み部３２ａに嵌挿されて固定されてもよい。 Furthermore, the columnar core member mounting portion 96 has a third resilient member 98, such as a coil spring, disposed in a recess formed in the rod body side connecting portion mounting hole 94 of the second connecting member 80 at its tip side so as to resiliently resilient from the tip tool 14 side toward the operating rod 12 side.
The third resilient member 98 may be fixed to the tip side of the columnar core member mounting portion 96, or may be fixed by being inserted into a recess 32a formed in the center of the connecting portion 32 (on the tip tool side).

抑止手段１８を構成する第３弾発部材９８は、ロック時、第２連結部材８０を先端側に押している。（タイプ２）The third spring member 98 constituting the restraining means 18 pushes the second connecting member 80 toward the tip when locked. (Type 2)

芯部材４４の固定手段１６は、第１連結部材５０が装填された、第１連結部材５０が介装された領域の外周部に設けられた、雄ネジ部４８により構成されており、一方、第１連結部材５０の固定手段１６は、芯部材４４に介装された領域の筒内に設けられた、雌ネジ部５８により構成されている。
第１連結部材５０の固定手段１６を構成する雌ネジ部５８は、芯部材４４の固定手段１６を構成する雄ネジ部４８に螺合され、第１連結部材５０を回すことにより操作棒１２の長手方向に移動させることができ、第１連結部材５０により第２連結部材８０を押圧するに適する位置に停止させることができる。 The fixing means 16 of the core member 44 is constituted by a male thread portion 48 provided on the outer periphery of the area in which the first connecting member 50 is interposed, in which the first connecting member 50 is loaded, while the fixing means 16 of the first connecting member 50 is constituted by a female thread portion 58 provided within the tube in the area in which the core member 44 is interposed.
The female threaded portion 58 that constitutes the fixing means 16 of the first connecting member 50 is screwed into the male threaded portion 48 that constitutes the fixing means 16 of the core member 44, and by turning the first connecting member 50, it can be moved in the longitudinal direction of the operating rod 12, and can be stopped at a position suitable for pressing the second connecting member 80 by the first connecting member 50.

次に、操作方法について、実施の形態にかかる連結構造１０を備えた絶縁操作棒１２を利用し、架空配電線バイパス回路を形成するため、絶縁操作棒１２によりその先端に連結された間接活線用の先端工具１４を操作することを想定して、以下説明する。
まず、図１０及び１１に示すように、作業者が間接活線工事用の先端工具１４を絶縁操作棒１２の先端部に装着するために、連結構造１０を構成する絶縁操作棒１２の（操作棒側の）連結部２４と先端工具１４の（先端工具側の）連結部３２と連結する。
具体的には、操作棒１２側の（操作棒側の）連結部２４の軸線と先端工具１４側の（先端工具側の）連結部３２の軸線とを一致させ、第１の固定凸部（ピン）６０を第１の固定溝９０の第１の溝部９０Ａと位置合わせする。
次に、操作棒１２を先端工具１４側に移動させて、第１の固定凸部（ピン）６０を第１の固定溝９０の第２の溝部９０Ｂまで挿入し、第２の溝部９０Ｂの先端工具１４側の溝壁まで到達すれば、操作棒１２を円周方向に回して、第１の固定凸部（ピン）６０を第２の溝部９０Ｂの溝に沿って第３の溝部９０Ｃに向けて進める。
連結構造１０が第３の溝部９０Ｃの溝口まで到達したとき、すなわち第２の溝部９０Ｂの行き止まりまで到達したとき、操作棒１２を先端工具１４側より手元側に引き戻し、第１の固定凸部（ピン）６０を第３の溝部９０Ｃに嵌め入れる。
そこで、第１連結部材５０を回すことにより、第１連結部材５０の雄ネジ部４８と芯部材４４の雌ネジ部５８との作用により第１連結部材５０を操作棒１２の長手方向に移動させて、第１連結部材５０により第２連結部材８０を押圧する位置まで移動させて、操作棒１２の（操作棒側の）連結部２４と先端工具１４の（先端工具側の）連結部３２とを強固に連結させる。 Next, the operation method will be described below assuming that an insulated operating rod 12 equipped with the connecting structure 10 according to the embodiment is used to operate an indirect live line tip tool 14 connected to the tip of the insulated operating rod 12 in order to form an overhead distribution line bypass circuit.
First, as shown in Figures 10 and 11, in order for an operator to attach the tip tool 14 for indirect live-line work to the tip of the insulated operating rod 12, the connecting portion 24 (on the operating rod side) of the insulated operating rod 12 and the connecting portion 32 (on the tip tool side) of the tip tool 14, which constitute the connecting structure 10, are connected.
Specifically, the axis of the connecting portion 24 on the operating rod 12 side (the operating rod side) is aligned with the axis of the connecting portion 32 on the tip tool 14 side (the tip tool side), and the first fixing convex portion (pin) 60 is aligned with the first groove portion 90A of the first fixing groove 90.
Next, the operating rod 12 is moved toward the tip tool 14, and the first fixing convex portion (pin) 60 is inserted into the second groove portion 90B of the first fixing groove 90. When it reaches the groove wall on the tip tool 14 side of the second groove portion 90B, the operating rod 12 is rotated circumferentially, and the first fixing convex portion (pin) 60 is advanced along the groove of the second groove portion 90B toward the third groove portion 90C.
When the connecting structure 10 reaches the mouth of the third groove portion 90C, i.e., when it reaches the end of the second groove portion 90B, the operating rod 12 is pulled back from the tip tool 14 side toward the handle side, and the first fixing protrusion (pin) 60 is inserted into the third groove portion 90C.
Therefore, by turning the first connecting member 50, the action of the male threaded portion 48 of the first connecting member 50 and the female threaded portion 58 of the core member 44 moves the first connecting member 50 in the longitudinal direction of the operating rod 12, moving it to a position where it presses the second connecting member 80, thereby firmly connecting the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the tip tool side) of the tip tool 14.

次に、連結構造１０において、操作棒本体２０の（操作棒側の）連結部２４と工具部（先端工具部）３０の（先端工具側の）連結部３２とのロックを解除するときについて、主として図１１に基づいて、説明する。そのときは、第１連結部材５０を回して雄ネジ部４８と雌ネジ部５８との噛合を外して手元側に移動させる。そして、操作棒本体２０の（操作棒側の）連結部２４を先端側に移動させて（第２連結部材８０で第１連結部材５０を手元側に押して）、固定手段１６を構成する第１の固定凸部（ピン）６０を第３の溝部９０Ｃより外し、操作棒１２を回して第１の固定凸部（ピン）６０を第２の溝部９０Ｂに沿って移動させ、第１の固定溝９０の第１の溝部９０Ａに位置したとき、手元側に操作棒１２を移動させて第１の固定凸部（ピン）６０を第１の固定溝９０から外すことにより、操作棒１２の（操作棒側の）連結部２４と先端工具１４の（先端工具側の）連結部３２とを分離することができる。Next, the unlocking of the connecting part 24 (on the operating rod side) of the operating rod body 20 and the connecting part 32 (on the tip tool side) of the tool part (tip tool part) 30 in the connecting structure 10 will be described mainly with reference to Figure 11. At that time, the first connecting member 50 is rotated to disengage the male threaded part 48 from the female threaded part 58 and move it toward the hand side. Then, the connecting portion 24 (on the operating rod side) of the operating rod main body 20 is moved toward the tip side (the first connecting member 50 is pushed toward the hand side with the second connecting member 80) to remove the first fixing convex portion (pin) 60 constituting the fixing means 16 from the third groove portion 90C, and the operating rod 12 is turned to move the first fixing convex portion (pin) 60 along the second groove portion 90B. When the first fixing convex portion (pin) 60 is positioned in the first groove portion 90A of the first fixing groove 90, the operating rod 12 is moved toward the hand side to remove the first fixing convex portion (pin) 60 from the first fixing groove 90, thereby separating the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the hand side) of the tip tool 14.

（第３の実施の形態） (Third embodiment)

次に、第１の実施の形態の変形例である第３の実施の形態である連結構造について、主として図１６ないし図２１に基づいて説明する。
なお、第１の実施の形態の変形例である第３の実施の形態である連結構造の説明において、図１ないし図９図示の第１の実施の形態である連結構造１０と共通の構成要件・要素については、同じ符号を付して、共通の構成要件・要素についての説明を省略することとする。
以下、第１の実施の形態の変形例である連結構造の特徴ある構成要件・要素を中心に説明する。
Next, a connecting structure according to a third embodiment, which is a modification of the first embodiment, will be described with reference to mainly FIGS.
In addition, in describing the connecting structure which is the third embodiment, which is a modified example of the first embodiment, the components and elements common to the connecting structure 10 which is the first embodiment shown in Figures 1 to 9 will be given the same symbols, and descriptions of the common components and elements will be omitted.
The following description will focus on characteristic constituent elements and components of the connection structure which is a modification of the first embodiment.

本発明にかかる第３の実施の形態である連結構造１０は、棒体を構成する操作棒１２と前記操作棒１２に連結される被連結部を構成する先端工具１４の連結部位とを連結する連結構造である。The connecting structure 10, which is the third embodiment of the present invention, is a connecting structure that connects an operating rod 12 constituting a rod body and a connecting portion of a tip tool 14 constituting a connected part connected to the operating rod 12.

間接活線工事用工具などの先端工具１４は、例えば活線状態の架空配電線の絶縁被覆を剥ぎ取る皮剥機、ヤットコ、係止具などで構成される。
先端工具１４は、電線等に直接的に接触する工具部３０と、工具部３０を操作棒１２に連結される領域に形成された、被連結部を構成する（先端工具側の）連結部３２とを備える。 The tip tool 14, such as an indirect live-line construction tool, is composed of, for example, a stripper for stripping the insulating coating of a live overhead distribution line, pliers, a fastening tool, and the like.
The tip tool 14 comprises a tool portion 30 which directly contacts an electric wire or the like, and a connecting portion 32 (on the tip tool side) which constitutes a connected portion and is formed in the area where the tool portion 30 is connected to the operating rod 12.

（第１）操作棒取付部材２６及び芯部材４４は、この実施の形態においては、図１７及び１８において示すように、操作棒本体２０の先端側に設けられた凹み部２０ａに嵌め込まれ、固定ピン２６ａ及び固定ピン２６ｂで固定されている。
芯部材４４の第１連結部４０は、（第１）操作棒取付部材２６の周囲にはめ込まれて操作棒本体２０の先端に設けられた凹み部２０ａに嵌め込まれ、操作棒本体２０に固定されている。 (1) In this embodiment, the operating rod mounting member 26 and the core member 44 are fitted into a recess 20a provided on the tip side of the operating rod body 20, as shown in Figures 17 and 18, and are fixed by fixing pins 26a and 26b.
The first connecting portion 40 of the core member 44 is fitted around the (first) operating rod mounting member 26 and fitted into a recessed portion 20 a provided at the tip of the operating rod body 20 , and is fixed to the operating rod body 20 .

芯部材４４は、中空部４６の第３中空部４６ｃに、操作棒本体２０に取り付けるための操作棒取り付け部材（（第１）操作棒取付部材２６）が配設されている。
操作棒取付部材（（第１）操作棒取付部材２６）は、操作棒本体２０の先端に固定されており、（第１）操作棒取付部材２６の周囲に、芯部材４４の第３中空部４６ｃが嵌め込まれて取り付けられている。
（第２）操作棒取付部材２８は、中空部４６内に嵌挿されて、その手元側が第３中空部４６ｃの中に位置し、そこより先端側が第１中空部４６ａの中に摺動自在に嵌め込まれ、更に、それより先端側が第２中空部４６ｂの中を先端側に伸びて柱状の芯部材取り付け部９６と連結されている。
この実施の形態においては、（第２）操作棒取付部材２８は、円柱状棒体であり、手元側が第１中空部４６ａよりその直径が太い頭部を備え、その先端側が第１中空部４６ａとほぼその直径が同じである棒状体を備えている。従って、第２中空部４６ｂは、（第２）操作棒取付部材２８との間に中空部を残しており、その中に第３弾発部材９８を嵌装できるように構成されている。 The core member 44 has an operating rod attachment member ((first) operating rod attachment member 26) for attachment to the operating rod body 20 disposed in the third hollow portion 46c of the hollow portion 46.
The operating rod mounting member (the first operating rod mounting member 26) is fixed to the tip of the operating rod main body 20, and the third hollow portion 46c of the core member 44 is fitted around and attached to the (first) operating rod mounting member 26.
(2) The operating rod mounting member 28 is inserted into the hollow portion 46, with its proximal end positioned within the third hollow portion 46c, and its tip end fitted freely into the first hollow portion 46a, and furthermore, the tip end extends through the second hollow portion 46b toward the tip end and is connected to the columnar core member mounting portion 96.
In this embodiment, the (second) operating rod mounting member 28 is a cylindrical rod body, and has a head portion with a diameter larger than that of the first hollow portion 46a at the proximal side, and a rod-shaped body with a diameter almost the same as that of the first hollow portion 46a at the distal end side. Therefore, the second hollow portion 46b leaves a hollow portion between the (second) operating rod mounting member 28 and is configured so that the third resilient member 98 can be fitted therein.

（操作棒側の）連結部２４は、操作棒本体２０の先端においてその中心に固定された芯部材４４を備えており、その芯部材４４の周囲には第１連結部材５０が配設されている。
更に、芯部材４４は、その手元側においてその周囲に、操作棒１２の手元側より先端工具１４側に向けて弾発するように形成されたコイルバネなどの弾発部材７０で構成された抑止手段１８が配設されていないが、芯部材４４の手元側に配設しても良い。 The connecting portion 24 (on the operating rod side) has a core member 44 fixed to the center at the tip of the operating rod body 20, and a first connecting member 50 is disposed around the core member 44.
Furthermore, the core member 44 does not have a restraining means 18 arranged around it on the proximal side, which is composed of a resilient member 70 such as a coil spring that is formed so as to resiliently repel from the proximal side of the operating rod 12 toward the tip tool 14 side, but it may be arranged on the proximal side of the core member 44.

（操作棒側の）連結部２４は、第１連結部材５０の中空部分の内側の第１連結部４０側に、第３連結部材５２が配設されている。
第１連結部材５０は、断面円形の円環状体であり、中空部分の内側において、その先端側が第２連結部材８０の手元側に嵌め入れられている。 The connecting portion 24 (on the operating rod side) has a third connecting member 52 disposed on the first connecting portion 40 side inside the hollow portion of the first connecting member 50 .
The first connecting member 50 is an annular body with a circular cross section, and its tip side is fitted into the proximal side of the second connecting member 80 inside the hollow portion.

第３連結部材５２は、断面円形の円環状体であり、第１連結部材５０の内周面に固定されており、第２連結部材８０の第２連結部８４の手元側の先端と接し合うように第１連結部４０の第２連結部４２に嵌められている。
第３連結部材５２は、芯部材４４の第２連結部４２に嵌挿され、第１連結部材５０の中空部側の内周面に嵌挿されるように形成された、リング状体である。第３連結部材５２は、その先端側が第２連結部材８０の第２連結部８４の手元側の端縁と接し、且つ、第１連結部材５０の中空部側の内周面の手元側の端縁と接して、第２連結部材８０の第２連結部８４の手元側端縁と第１連結部材５０の中空部側の内周面の手元側の端縁との間に介在するように構成されている。 The third connecting member 52 is a circular ring-shaped body with a circular cross-section, is fixed to the inner surface of the first connecting member 50, and is fitted into the second connecting portion 42 of the first connecting portion 40 so as to abut the proximal tip of the second connecting portion 84 of the second connecting member 80.
The third connecting member 52 is a ring-shaped body formed to be fitted into the second connecting portion 42 of the core member 44 and fitted into the inner circumferential surface of the hollow portion side of the first connecting member 50. The third connecting member 52 is configured such that its tip side contacts the proximal edge of the second connecting portion 84 of the second connecting member 80 and also contacts the proximal edge of the inner circumferential surface of the hollow portion side of the first connecting member 50, and is interposed between the proximal edge of the second connecting portion 84 of the second connecting member 80 and the proximal edge of the inner circumferential surface of the hollow portion side of the first connecting member 50.

第１連結部材５０及び第２連結部材８０の固定手段１６は、第１連結部材５０が装填された第２連結部材８０に、第１連結部材５０が介装された領域の第２連結部材８０の外周部に設けられた、雄ネジ部８８により構成されており、一方、第１連結部材５０の固定手段１６は、第２連結部材８０に介装された領域の筒内に設けられた、雌ネジ部５８により構成されている。
第１連結部材５０の固定手段１６を構成する雌ネジ部５８は、第２連結部材８０の固定手段１６を構成する雄ネジ部８８に螺合され、第１連結部材５０を回すことにより操作棒１２の長手方向に移動させることができ、第１連結部材５０に連設された第３連結部材５２により第２連結部材８０を押圧するに適する位置に停止させることができる。 The fixing means 16 of the first connecting member 50 and the second connecting member 80 is constituted by a male thread portion 88 provided on the outer periphery of the second connecting member 80 in the area in which the first connecting member 50 is interposed, in which the second connecting member 80 is loaded with the first connecting member 50, while the fixing means 16 of the first connecting member 50 is constituted by a female thread portion 58 provided within the tube in the area in which the second connecting member 80 is interposed.
The female threaded portion 58 that constitutes the fixing means 16 of the first connecting member 50 is screwed into the male threaded portion 88 that constitutes the fixing means 16 of the second connecting member 80, and by turning the first connecting member 50, it can be moved in the longitudinal direction of the operating rod 12, and can be stopped at a position suitable for pressing the second connecting member 80 by the third connecting member 52 connected to the first connecting member 50.

（操作棒側の）連結部２４は、抑止手段１８を構成する弾発部材７０が配設されていないが、芯部材４４の手元側に配置されても良い。
この第３の実施の形態においては、第１連結部４０の第２連結部４２は、第１連結部材５０が嵌め入れられた領域の手元側には弾発部材７０（図示せず）の先端側を止めるための弾発部材取り付け部７２が形成されている。
更に、操作棒１２の操作棒本体２０は、第１連結部材５０の手元側の外表面と向き合う側において、その先端側に、弾発部材７０（図示せず）の後端側を止めるための弾発部材取り付け部７４が形成されている。 The connecting portion 24 (on the operating rod side) is not provided with the resilient member 70 constituting the restraining means 18, but may be disposed on the proximal side of the core member 44.
In this third embodiment, the second connecting portion 42 of the first connecting portion 40 has a resilient member mounting portion 72 formed on the proximal side of the area into which the first connecting member 50 is fitted, for securing the tip end of the resilient member 70 (not shown).
Furthermore, the operating rod body 20 of the operating rod 12 has a resilient member mounting portion 74 formed on the tip side on the side facing the outer surface of the hand side of the first connecting member 50 for securing the rear end side of the resilient member 70 (not shown).

第１連結部材５０は、円環状であり、略円柱状の芯部材４４の周囲に嵌め装填されており、芯部材４４及び操作棒本体２０の長手方向に摺動するように構成されている。第１連結部材５０の手元側と操作棒本体２０の先端側との間に介装された弾発部材７０（図示せず）により、先端側に弾発されるように構成されることがある。
第１の固定凸部（ピン）６０は、（操作棒側の）連結部２４の中央において、径方向にのびるように形成されている。
第１の固定凸部（ピン）６０は、先端工具１４に対し相対的に、操作棒１２の移動に伴い操作棒１２の軸方向に移動できるように形成され且つ操作棒１２の周方向に回転できるように形成されている。 The first connecting member 50 is annular, fitted around the substantially cylindrical core member 44, and configured to slide in the longitudinal direction of the core member 44 and the operating rod body 20. It may be configured to be resilient toward the tip side by a resilient member 70 (not shown) interposed between the proximal side of the first connecting member 50 and the tip side of the operating rod body 20.
The first fixing protrusion (pin) 60 is formed in the center of the connecting portion 24 (on the operating rod side) so as to extend radially.
The first fixing convex portion (pin) 60 is formed so as to be able to move in the axial direction of the operating rod 12 as the operating rod 12 moves, relative to the tool bit 14, and is formed so as to be able to rotate in the circumferential direction of the operating rod 12.

（第２）操作棒取付部材２８は、柱状の芯部材取り付け部９６と直列に並んで、芯部材４４の第２連結部４２において取り付けられている。
柱状の芯部材取り付け部９６は、第２連結部材８０の手元側の部位に突き当たるように構成されており、柱状の芯部材取り付け部９６の手元側の端部と前記中空部４６の第１中空部４６ａの境界壁部との間に存在する第２中空部４６ｂに、柱状の芯部材取り付け部９６を手元側又は先端側に向けて弾発するように形成されたコイルバネ等の第２弾発部材７６が配設されている。 The (second) operating rod mounting member 28 is aligned in series with the columnar core member mounting portion 96 and is attached to the second connecting portion 42 of the core member 44 .
The columnar core member mounting portion 96 is configured to abut against the proximal portion of the second connecting member 80, and a second resilient member 76 such as a coil spring is disposed in a second hollow portion 46b that exists between the proximal end of the columnar core member mounting portion 96 and the boundary wall portion of the first hollow portion 46a of the hollow portion 46. The second resilient member 76 is formed to resiliently resilient the columnar core member mounting portion 96 toward the proximal or tip side.

柱状の芯部材取り付け部９６は、図１６及び１７において示すように、第２連結部４２の中空部４６に嵌め込まれ、（第２）操作棒取付部材２８に抜け止めネジ２８ａで固定されている。 As shown in Figures 16 and 17, the columnar core member mounting portion 96 is fitted into the hollow portion 46 of the second connecting portion 42 and fixed to the (second) operating rod mounting member 28 with an anti-slip screw 28a.

第１連結部材５０は、先端工具１４を操作棒１２に取り付けたとき、固定手段１６を構成する第１の固定凸部（ピン）６０を覆うように構成されており、かつ第２連結部材８０の第２連結部８４及び第３連結部材５２をその中空部分に内包するように構成されている。The first connecting member 50 is configured to cover the first fixing convex portion (pin) 60 constituting the fixing means 16 when the tip tool 14 is attached to the operating rod 12, and is configured to contain the second connecting portion 84 of the second connecting member 80 and the third connecting member 52 within its hollow portion.

第１連結部材５０と第２連結部材８０の第２連結部８４とは、第１連結部材５０を回したときに、固定手段１６を構成する雄ネジ部８８及び雌ネジ部５８によって、軸方向に螺動するように構成されている。
この実施の形態においては、第１連結部材５０は、第１連結部材５０における第２連結部材８０の第２連結部８４と重なる領域の内側に雌ネジ部５８が形成され、第２連結部材８０は、第２連結部８４における第１連結部材５０に覆われる領域の外側に雄ネジ部８８が形成されている。 The first connecting member 50 and the second connecting portion 84 of the second connecting member 80 are configured to screw in the axial direction by the male thread portion 88 and the female thread portion 58 that constitute the fixing means 16 when the first connecting member 50 is rotated.
In this embodiment, the first connecting member 50 has a female thread portion 58 formed on the inside of the area of the first connecting member 50 that overlaps with the second connecting portion 84 of the second connecting member 80, and the second connecting member 80 has a male thread portion 88 formed on the outside of the area of the second connecting portion 84 that is covered by the first connecting member 50.

この実施の形態においては、操作棒１２の操作棒本体２０は、断面略円形の棒体であり、芯部材４４の第１連結部４０及び第２連結部４２は、断面略円形の棒状体であり、第１連結部材５０は、断面略円形の環状体であり、第３連結部材５２は、断面略円形の環状体であり、第２連結部材８０は、断面略円形の環状体である。
そして、これら操作棒１２の操作棒本体２０、芯部材４４、第１連結部材５０、第３連結部材５２及び第２連結部材８０は、棒体の軸線方向に伸びる中心線を同心として、並列されている。
第３連結部材５２は、芯部材４４の第２連結部４２の周囲に配設され、第１連結部材５０は、第３連結部材５２及び第２連結部材８０の第２連結部８４の周囲に配設され、第２連結部材８０は、芯部材４４の先端側の周囲に配設され、第３連結部材５２の先端側の端縁と第２連結部材８０の手元側の端縁とは、対向するように形成されている。 In this embodiment, the operating rod body 20 of the operating rod 12 is a rod body having an approximately circular cross-section, the first connecting portion 40 and the second connecting portion 42 of the core member 44 are rod-shaped bodies having an approximately circular cross-section, the first connecting member 50 is an annular body having an approximately circular cross-section, the third connecting member 52 is an annular body having an approximately circular cross-section, and the second connecting member 80 is an annular body having an approximately circular cross-section.
The operating rod body 20, core member 44, first connecting member 50, third connecting member 52 and second connecting member 80 of the operating rod 12 are arranged in parallel with each other, with the center line extending in the axial direction of the rod body being concentric.
The third connecting member 52 is arranged around the second connecting portion 42 of the core member 44, the first connecting member 50 is arranged around the third connecting member 52 and the second connecting portion 84 of the second connecting member 80, and the second connecting member 80 is arranged around the tip side of the core member 44, and the tip side edge of the third connecting member 52 and the proximal side edge of the second connecting member 80 are formed to face each other.

次に、操作方法について、実施の形態にかかる連結構造１０を備えた絶縁操作棒１２を利用し、架空配電線バイパス回路を形成するため、絶縁操作棒１２によりその先端に連結された間接活線用の先端工具１４を操作することを想定して、以下説明する。
まず、図１６及び図１７に示すように、作業者が間接活線工事用の先端工具１４を絶縁操作棒１２の先端部に装着するために、連結構造１０を構成する絶縁操作棒１２の（操作棒側の）連結部２４と先端工具１４の（先端工具側の）連結部３２と連結する。
具体的には、操作棒１２側の（操作棒側の）連結部２４の軸線と先端工具１４側の（先端工具側の）連結部３２の軸線とを一致させ、第１の固定凸部（ピン）６０を第１の固定溝９０の第１の溝部９０Ａと位置合わせする。
次に、操作棒１２を先端工具１４側に移動させて、第１の固定凸部（ピン）６０を第１の固定溝９０の第２の溝部９０Ｂまで挿入し、第２の溝部９０Ｂの先端工具１４側の溝壁まで到達すれば、操作棒１２を円周方向に回して、第１の固定凸部（ピン）６０を第２の溝部９０Ｂの溝に沿って第３の溝部９０Ｃに向けて進める。
連結構造１０が第３の溝部９０Ｃの溝口まで到達したとき、すなわち第２の溝部９０Ｂの行き止まりまで到達したとき、操作棒１２を先端工具１４側より手元側に引き戻し、第１の固定凸部（ピン）６０を第３の溝部９０Ｃに嵌め入れる。
そこで、第１連結部材５０を回すことにより、第１連結部材５０の雌ネジ部５８と第２連結部材８０の雄ネジ部８８との作用により第１連結部材５０を操作棒１２の長手方向に移動させて、第３連結部材５２により第２連結部材８０を押圧する位置まで移動させて、操作棒１２の（操作棒側の）連結部２４と先端工具１４の（先端工具側の）連結部３２とを強固に連結させる。 Next, the operation method will be described below assuming that an insulated operating rod 12 equipped with the connecting structure 10 according to the embodiment is used to operate an indirect live line tip tool 14 connected to the tip of the insulated operating rod 12 in order to form an overhead distribution line bypass circuit.
First, as shown in Figures 16 and 17, in order for an operator to attach the tip tool 14 for indirect live-line work to the tip of the insulated operating rod 12, the connecting portion 24 (on the operating rod side) of the insulated operating rod 12 and the connecting portion 32 (on the tip tool side) of the tip tool 14, which constitute the connecting structure 10, are connected.
Specifically, the axis of the connecting portion 24 on the operating rod 12 side (the operating rod side) is aligned with the axis of the connecting portion 32 on the tip tool 14 side (the tip tool side), and the first fixing convex portion (pin) 60 is aligned with the first groove portion 90A of the first fixing groove 90.
Next, the operating rod 12 is moved toward the tip tool 14, and the first fixing convex portion (pin) 60 is inserted into the second groove portion 90B of the first fixing groove 90. When it reaches the groove wall on the tip tool 14 side of the second groove portion 90B, the operating rod 12 is rotated circumferentially, and the first fixing convex portion (pin) 60 is advanced along the groove of the second groove portion 90B toward the third groove portion 90C.
When the connecting structure 10 reaches the mouth of the third groove portion 90C, i.e., when it reaches the end of the second groove portion 90B, the operating rod 12 is pulled back from the tip tool 14 side toward the handle side, and the first fixing protrusion (pin) 60 is inserted into the third groove portion 90C.
Therefore, by turning the first connecting member 50, the action of the female threaded portion 58 of the first connecting member 50 and the male threaded portion 88 of the second connecting member 80 moves the first connecting member 50 in the longitudinal direction of the operating rod 12, and moves it to a position where the second connecting member 80 is pressed by the third connecting member 52, thereby firmly connecting the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the tip tool side) of the tip tool 14.

次に、連結構造１０において、操作棒本体２０の（操作棒側の）連結部２４と工具部（先端工具部）３０の（先端工具側の）連結部３２とのロックを解除するときについて、主として図１７に基づいて説明する。そのときは、第１連結部材５０を回して手元側に移動させ、操作棒本体２０の（操作棒側の）連結部２４を先端側に移動させて固定手段１６を構成する第１の固定凸部（ピン）６０を第３の溝部９０Ｃより外し、操作棒１２を回して第１の固定凸部（ピン）６０を第２の溝部９０Ｂに沿って移動させ、第１の固定溝９０に位置したとき、手元側に操作棒１２を移動させて第１の固定凸部（ピン）６０を第１の固定溝９０から外すことにより、操作棒１２の（操作棒側の）連結部２４と先端工具１４の（先端工具側の）連結部３２とを分離することができる。Next, the case where the lock between the connecting part 24 (on the operating rod side) of the operating rod main body 20 and the connecting part 32 (on the tip tool side) of the tool part (tip tool part) 30 in the connecting structure 10 is released will be described mainly with reference to FIG. 17. At that time, the first connecting member 50 is rotated and moved toward the hand side, the connecting part 24 (on the operating rod side) of the operating rod main body 20 is moved toward the tip side to remove the first fixing convex part (pin) 60 constituting the fixing means 16 from the third groove part 90C, the operating rod 12 is rotated to move the first fixing convex part (pin) 60 along the second groove part 90B, and when it is positioned in the first fixing groove 90, the operating rod 12 is moved toward the hand side to remove the first fixing convex part (pin) 60 from the first fixing groove 90, thereby separating the connecting part 24 (on the operating rod side) of the operating rod 12 and the connecting part 32 (on the tip tool side) of the tip tool 14.

（第４の実施の形態） (Fourth embodiment)

次に、第４の実施の形態である連結構造について、主として図２２ないし図３３に基づいて説明する。
なお、図１ないし図９図示の第１の実施の形態である連結構造１０と共通の構成要件・要素については、同じ符号を付して、共通の構成要件・要素についての説明を省略することとする。
以下、第４の実施の形態の連結構造の特徴ある構成要件・要素を中心に説明する。 Next, a connecting structure according to a fourth embodiment will be described with reference to mainly FIGS.
In addition, the same reference numerals are used for the components and elements common to the connecting structure 10 according to the first embodiment shown in FIGS. 1 to 9, and the description of the common components and elements will be omitted.
The following description will focus on characteristic constituent elements and components of the connection structure of the fourth embodiment.

本発明にかかる第４の実施の形態である連結構造１０は、棒体を構成する操作棒１２と前記操作棒１２に連結される被連結部を構成する先端工具１４の連結部位とを連結する連結構造である。The fourth embodiment of the present invention, a connecting structure 10, is a connecting structure that connects an operating rod 12 constituting a rod body and a connecting portion of a tip tool 14 constituting a connected part connected to the operating rod 12.

棒体である操作棒１２の側の連結部２４と被連結部側の連結部３２とは、棒体の軸線方向に伸びる中心線を同心として、並列されており、一方に凸部が形成され、他方に凹部が形成されており、その凸部と凹部とが組み合わさって連結されるように構成されている。
この実施の形態においては、連結部２４に凸部を構成する芯部材４４が形成され、連結部３２に凹部を構成する棒体側連結部取り付け孔９４が形成されている。
芯部材４４は、断面略円形の棒状体であり、棒体側連結部取り付け孔９４は、断面略円形の環状体であり、棒体の軸線方向に伸びる中心線を同心として並列されており、棒体側連結部取り付け孔９４に芯部材４４を組み合わせて、操作棒１２の側の連結部２４と被連結部側の連結部３２とが連結されるように構成されている。 The connecting portion 24 on the side of the operating rod 12, which is a rod body, and the connecting portion 32 on the side of the connected portion are arranged in parallel, concentrically about a center line extending in the axial direction of the rod body, with a convex portion formed on one side and a concave portion formed on the other, and are configured so that the convex portion and the concave portion are combined and connected.
In this embodiment, a core member 44 constituting a convex portion is formed in the connecting portion 24, and a rod body side connecting portion attachment hole 94 constituting a concave portion is formed in the connecting portion 32.
The core member 44 is a rod-shaped body with an approximately circular cross-section, and the rod side connecting part mounting hole 94 is an annular body with an approximately circular cross-section, and is aligned concentrically with a center line extending in the axial direction of the rod body. By combining the core member 44 with the rod side connecting part mounting hole 94, the connecting part 24 on the operating rod 12 side and the connecting part 32 on the connected part side are configured to be connected.

操作棒本体２０の（操作棒側の）連結部２４を構成する芯部材４４は、操作棒取付部材（（第１）操作棒取付部材２６並びに固定ピン２６ａ及び固定ピン２６ｂ）により、操作棒本体２０と連結されている。
（第１）操作棒取付部材２６は、有底円環状体であり、操作棒本体２０の凹み部２０ａに嵌め込まれて、適宜な固定手段、例えば、固定ピン２６ａ及び固定ピン２６ｂにより直接的に連結されるように構成されている。 The core member 44 constituting the connecting portion 24 (on the operating rod side) of the operating rod main body 20 is connected to the operating rod main body 20 by an operating rod mounting member (the (first) operating rod mounting member 26 and the fixing pins 26a and 26b).
The (first) operating rod mounting member 26 is a bottomed circular ring-shaped body that is fitted into the recessed portion 20a of the operating rod main body 20 and is configured to be directly connected by appropriate fixing means, for example, fixing pins 26a and 26b.

（操作棒側の）連結部２４は、第１連結部４０及び第２連結部４２を構成する芯部材４４を備えている。
芯部材４４は、前記操作棒取付部材（（第１）操作棒取付部材２６）の中央に穿設された取り付け穴２６ｄに嵌合され、前記連結ネジ２６ｃにより、連結されている。
この実施の形態においては、（第１）操作棒取付部材２６は、その手元側より（第１）操作棒取付部材２６と芯部材４４とを連結するための連結ネジ２６ｃを挿入することにより、芯部材４４の手元側に連結ネジ２６ｃによりネジ止めして、（第１）操作棒取付部材２６と連結されている。
芯部材４４は、（第１）操作棒取付部材２６を介して操作棒本体２０に取り付けられている。 The connecting portion 24 (on the operating rod side) has a core member 44 that constitutes a first connecting portion 40 and a second connecting portion 42 .
The core member 44 is fitted into a mounting hole 26d drilled in the center of the operating rod mounting member (the (first) operating rod mounting member 26) and is connected by the connecting screw 26c.
In this embodiment, the (first) operating rod mounting member 26 is connected to the (first) operating rod mounting member 26 by inserting a connecting screw 26c for connecting the (first) operating rod mounting member 26 to the core member 44 from its proximal side, and screwing it to the proximal side of the core member 44 with the connecting screw 26c.
The core member 44 is attached to the operating rod body 20 via a (first) operating rod mounting member 26 .

（操作棒側の）連結部２４は、抑止手段１８を構成する弾発部材７０が配設されている。
この実施の形態においては、芯部材４４は、その第１連結部４０においてその周囲に、操作棒１２の手元側より先端工具１４側に向けて弾発するように形成されたコイルバネなどの弾発部材７０で構成された抑止手段１８が配設されている。 A resilient member 70 constituting the restraining means 18 is disposed on the connecting portion 24 (on the operating rod side).
In this embodiment, the core member 44 has a restraining means 18 arranged around its first connecting portion 40, which is composed of a resilient member 70 such as a coil spring that is formed so as to resiliently repel from the proximal side of the operating rod 12 toward the tip tool 14.

芯部材４４は、この実施の形態においては、手元側が、操作棒本体２０に取り付けられるように操作棒本体２０より細い円柱状部で形成された第１連結部４０を構成し、先端側が、手元側の細い第１連結部４０より太く形成された太い円柱状部で形成された第２連結部４２を構成している。
この実施の形態においては、図２８において示すように、芯部材４４は、第１連結部４０と第２連結部４２とを別部材として形成し、適宜ピン４４ａにより連結されたものである。
In this embodiment, the core member 44 constitutes a first connecting portion 40 on the proximal side formed of a cylindrical portion thinner than the operating rod main body 20 so as to be attached to the operating rod main body 20, and a second connecting portion 42 on the tip side formed of a thick cylindrical portion that is thicker than the thin first connecting portion 40 on the proximal side.
In this embodiment, as shown in FIG. 28, the core member 44 has a first connecting portion 40 and a second connecting portion 42 formed as separate members, which are appropriately connected by a pin 44a .

芯部材４４は、先端側の第２連結部４２において固定手段１６を構成する第１の固定凸部（ピン）６０が取り付けられており、また、手元側の第１連結部４０においてその周囲に抑止手段１８を構成する弾発部材７０が介装されている。
更に、この実施の形態においては、芯部材４４は、第２連結部４２において後述する第２の固定凸部（プランジャ）６２を、操作棒１２の長手方向及び径方向に導き、固定させるための第２の固定溝９２が形成されている。 The core member 44 has a first fixing protrusion (pin) 60 that constitutes the fixing means 16 attached to the second connecting portion 42 on the tip side, and a resilient member 70 that constitutes the restraining means 18 is interposed around the first connecting portion 40 on the proximal side.
Furthermore, in this embodiment, the core member 44 is formed with a second fixing groove 92 for guiding and fixing a second fixing protrusion (plunger) 62 described later in the second connecting portion 42 in the longitudinal and radial directions of the operating rod 12.

（操作棒側の）連結部２４は、第１連結部材５０が配設されている。
第１連結部材５０は、断面円形の円環状体であり、中空部分の内側において、その先端側が第１連結部４０の第２連結部４２に嵌め入れられている。
（操作棒側の）連結部２４は、この実施の形態においては、操作棒本体２０の先端においてその中心に固定された芯部材４４を備えており、その芯部材４４の周囲には第１連結部材５０が配設されている。 A first connecting member 50 is disposed on the connecting portion 24 (on the operating rod side).
The first connecting member 50 is an annular body with a circular cross section, and its tip side is fitted into the second connecting portion 42 of the first connecting portion 40 inside the hollow portion.
In this embodiment, the connecting portion 24 (on the operating rod side) has a core member 44 fixed to the center at the tip of the operating rod main body 20, and a first connecting member 50 is arranged around the core member 44.

第１連結部４０は、第１連結部材５０が嵌め入れられた領域の手元側には弾発部材７０の先端側を止めるための弾発部材取り付け部７２が形成されている。
更に、操作棒１２の操作棒本体２０は、第１連結部材５０の手元側の外表面と向き合う側において、その先端側に、弾発部材７０の後端側を止めるための弾発部材取り付け部７４が形成されている。
第１連結部材５０は、第１連結部４０の芯部材４４に介装された弾発部材７０を囲繞するように、弾発部材取り付け部７２と弾発部材取り付け部７４との間に跨って架設されており、その先端側が第２連結部４２の外周面を囲繞するように第２連結部４２に取り付けられている。 The first connecting portion 40 has a resilient member attachment portion 72 for fixing the tip end of the resilient member 70 on the proximal side of the region into which the first connecting member 50 is fitted.
Furthermore, the operating rod body 20 of the operating rod 12 has a resilient member mounting portion 74 formed on the tip side on the side facing the outer surface of the hand side of the first connecting member 50 for fastening the rear end side of the resilient member 70.
The first connecting member 50 is installed across between the resilient member mounting portion 72 and the resilient member mounting portion 74 so as to surround the resilient member 70 interposed in the core member 44 of the first connecting portion 40, and its tip side is attached to the second connecting portion 42 so as to surround the outer peripheral surface of the second connecting portion 42.

抑止手段１８を構成する弾発部材７０は、操作棒１２に先端工具１４を取り付けたとき、弾発部材取り付け部７２を介して、第１連結部材５０を、被連結部を構成する第２連結部４２の第２連結部材８０側に付勢するように構成されている。The resilient member 70 constituting the restraining means 18 is configured to bias the first connecting member 50 toward the second connecting member 80 side of the second connecting part 42 constituting the connected part via the resilient member mounting part 72 when the tip tool 14 is attached to the operating rod 12.

前記固定手段１６は、前記棒体側の連結部に形成された、分離防止手段を構成する第１の固定凸部（ピン）６０により構成され、
及び／又は、
前記固定手段１６は、前記棒体側の第１連結部材５０に形成された、分離防止手段を構成する第２の固定凸部（プランジャー）６２により構成され、
前記第２連結部材８０に形成された固定手段又は芯部材４４に形成された固定手段は、前記芯部材４４及び／又は第２連結部材８０において、対応した位置に形成された、曲がりくねった分離防止手段を構成する固定溝たる第１の固定溝９０により構成されている。 The fixing means 16 is constituted by a first fixing protrusion (pin) 60 which is formed on the connecting portion on the rod body side and constitutes a separation prevention means,
and/or
The fixing means 16 is constituted by a second fixing protrusion (plunger) 62 which is formed on the first connecting member 50 on the rod body side and constitutes a separation prevention means,
The fixing means formed on the second connecting member 80 or the fixing means formed on the core member 44 is constituted by a first fixing groove 90, which is a fixing groove constituting a tortuous separation prevention means, formed at a corresponding position on the core member 44 and/or the second connecting member 80.

前記芯部材４４の第１連結部４０は、後述する第１連結部材５０の移動スペースを操作棒本体２０との間に形成するように構成されている。
前記芯部材４４の第２連結部４２は、先端側に前記第１の固定凸部（ピン）６０が配設されている。
更に、芯部材４４の第２連結部４２は、後述する第２の固定凸部（プランジャ）６２を誘導するための第２の固定溝９２が形成されている。 The first connecting portion 40 of the core member 44 is configured to form a movement space for a first connecting member 50 (described later) between itself and the operating rod body 20 .
The second connecting portion 42 of the core member 44 has the first fixing protrusion (pin) 60 disposed on the tip side.
Furthermore, the second connecting portion 42 of the core member 44 is formed with a second fixing groove 92 for guiding a second fixing protrusion (plunger) 62 (described later).

第１の固定凸部（ピン）６０は、（操作棒側の）連結部２４の第２連結部４２において、径方向にのびるように形成されている。
第１の固定凸部（ピン）６０は、先端工具１４に対し相対的に、操作棒１２の移動に伴い操作棒１２の軸方向に移動できるように形成され且つ操作棒１２の回転に伴い操作棒１２の周方向に回転できるように形成されている。 The first fixing protrusion (pin) 60 is formed so as to extend radially in the second connecting portion 42 of the connecting portion 24 (on the operating rod side).
The first fixed convex portion (pin) 60 is formed so as to be able to move in the axial direction of the operating rod 12 as the operating rod 12 moves, relative to the tip tool 14, and so as to be able to rotate in the circumferential direction of the operating rod 12 as the operating rod 12 rotates.

第２の固定溝９２は、操作棒１２側に開口した第１の溝部９２Ａと、第１の溝部９２Ａに続いて開口した第２の溝部９２Ｂと、第２の溝部９２Ｂに続いて開口した第３の溝部９２Ｃとを有している。第１の溝部９２Ａは、長手方向にのびており、第２の溝部９２Ｂは周方向にのびており、第３の溝部９２Ｃは長手方向にのびて袋小路になっている。
第２の固定溝９２は、平面視Ｌ字型に形成されており、操作棒１２に先端工具１４を取り付けるとき、第１連結部材５０を回すと、第２の固定凸部（プランジャ）６２が第３の溝部９２Ｃに突き当たり、第１連結部材５０が移動しないように構成されている。
第２の固定溝９２は、嵌り込んだ第２の固定凸部（プランジャ）６２の頭部が若干突出する深さと、前記嵌り込んだ第２の固定凸部（プランジャ）６２の軸部が移動することができる幅とを備えている。 The second fixing groove 92 has a first groove portion 92A that opens toward the operating rod 12, a second groove portion 92B that opens subsequent to the first groove portion 92A, and a third groove portion 92C that opens subsequent to the second groove portion 92B. The first groove portion 92A extends in the longitudinal direction, the second groove portion 92B extends in the circumferential direction, and the third groove portion 92C extends in the longitudinal direction and forms a dead end.
The second fixing groove 92 is formed in an L-shape when viewed in a plane, and when the tip tool 14 is attached to the operating rod 12, when the first connecting member 50 is turned, the second fixing convex portion (plunger) 62 abuts against the third groove portion 92C, so that the first connecting member 50 does not move.
The second fixing groove 92 has a depth that allows the head of the fitted second fixing convex portion (plunger) 62 to protrude slightly, and a width that allows the shaft portion of the fitted second fixing convex portion (plunger) 62 to move.

前記第２の固定凸部（プランジャ）６２は、図２４において示すように、筒状の本体６２ａと該筒状の本体６２ａの筒内に装填されたバネ等の付勢体６２ｂと、付勢体６２ｂにより筒状の本体６２ａの下端部より頭部が突き出たボール状の凸部６２ｃとを備えている。
第２の固定凸部（プランジャ）６２は、第１連結部材５０の径方向に突き出し設けられ、前記第２の固定溝９２は、前記嵌り込んだ第２の固定凸部（プランジャ）６２の凸部６２ｃが若干嵌る深さの凹部９２ａと、前記嵌り込んだ第２の固定凸部（プランジャ）６２の筒状の本体６２ａ及び凸部６２ｃが移動することができる幅を有する平面上の移動路９２ｂとを備えている。第２の固定凸部（プランジャ）６２が第２の固定溝９２の溝中の移動路９２ｂを移動して、凹状の凹部９２ａに嵌り、第１連結部材５０の移動を制御するように構成されている。第２の固定溝９２は、図２４において示すように、凹部９２ａが第２の溝部９２Ｂ及び第３の溝部９２Ｃに設けられている。 As shown in Figure 24, the second fixed convex portion (plunger) 62 comprises a cylindrical main body 62a, a biasing body 62b such as a spring loaded inside the cylindrical main body 62a, and a ball-shaped convex portion 62c whose head protrudes from the lower end of the cylindrical main body 62a by the biasing body 62b.
The second fixing convex portion (plunger) 62 is provided to protrude in the radial direction of the first connecting member 50, and the second fixing groove 92 is provided with a recess 92a having a depth in which the protrusion 62c of the second fixing convex portion (plunger) 62 fits slightly, and a planar movement path 92b having a width in which the cylindrical main body 62a and the protrusion 62c of the second fixing convex portion (plunger) 62 can move. The second fixing convex portion (plunger) 62 moves along the movement path 92b in the groove of the second fixing groove 92 and fits into the concave recess 92a to control the movement of the first connecting member 50. As shown in FIG. 24, the second fixing groove 92 has recesses 92a provided in the second groove portion 92B and the third groove portion 92C.

第１連結部材５０は、円環状であり、略円柱状の芯部材４４の周囲に嵌め装填されており、芯部材４４及び操作棒本体２０の長手方向に移動自在に構成されており、第１連結部材５０の手元側と操作棒本体２０の先端側との間に介装された弾発部材７０により、先端側に弾発されるように構成されている。
第１連結部材５０は、先端側に、第２の固定凸部（プランジャ）６２を固定するための孔５０ａが穿設されており、その孔５０ａに固定手段１６を構成する第２の固定凸部（プランジャ）６２が嵌合固定されている。 The first connecting member 50 is annular and fitted around the approximately cylindrical core member 44, and is configured to be freely movable in the longitudinal direction of the core member 44 and the operating rod main body 20, and is configured to be resilient toward the tip side by a resilient member 70 interposed between the proximal side of the first connecting member 50 and the tip side of the operating rod main body 20.
The first connecting member 50 has a hole 50a drilled at its tip side for fixing a second fixing protrusion (plunger) 62, and the second fixing protrusion (plunger) 62 constituting the fixing means 16 is fitted and fixed into the hole 50a.

（先端工具側の）連結部３２は、操作棒１２に取り付けられる被取付部を構成しており、操作棒１２の側の連結部２４を連結できるように形成された第２連結部材８０が配設されている。
第２連結部材８０は、操作棒１２に連結される側の領域に、操作棒１２の側の連結部２４に配設された前記第１の固定凸部（ピン）６０を停止させる第１の固定溝９０が形成されている。第１の固定溝９０は、第１の固定凸部（ピン）６０を嵌め入れ、（操作棒側の）連結部２４と（先端工具側の）連結部３２とを連結したときに第１の固定凸部（ピン）６０を固定する固定手段１６を構成している。 The connecting portion 32 (on the tip tool side) constitutes a mounting portion that is attached to the operating rod 12, and a second connecting member 80 is provided that is formed so as to be able to connect the connecting portion 24 on the operating rod 12 side.
The second connecting member 80 is formed, in a region on the side connected to the operating rod 12, with a first fixing groove 90 for stopping the first fixing protrusion (pin) 60 disposed on the connecting portion 24 on the operating rod 12 side. The first fixing groove 90 constitutes a fixing means 16 for fixing the first fixing protrusion (pin) 60 when the connecting portion 24 (on the operating rod side) and the connecting portion 32 (on the tool tip side) are connected by fitting the first fixing protrusion (pin) 60 therein.

前記第１の固定凸部（ピン）６０は、芯部材４４の第２連結部４２の径方向に突き出し設けられ、前記第１の固定溝９０は、前記嵌り込んだ第１の固定凸部（ピン）６０の頭部が若干突出する深さと、前記嵌り込んだ第１の固定凸部（ピン）６０の軸部が移動することができる幅とを備えており、第１の固定凸部（ピン）６０が第１の固定溝９０の溝中を移動して、操作棒１２及び第１連結部４０の移動を制御するように構成されている。The first fixing convex portion (pin) 60 is provided to protrude radially from the second connecting portion 42 of the core member 44, and the first fixing groove 90 has a depth that allows the head of the fitted first fixing convex portion (pin) 60 to protrude slightly and a width that allows the shaft portion of the fitted first fixing convex portion (pin) 60 to move, and is configured so that the first fixing convex portion (pin) 60 moves within the groove of the first fixing groove 90 to control the movement of the operating rod 12 and the first connecting portion 40.

第２連結部材８０は、（先端）工具部３０に取り付けられ且つ操作棒１２に連結される被取付部を構成するものであり、（先端）工具部３０に取り付けられる先端工具取り付け部である第１連結部８２と、前記先端工具取り付け部である第１連結部８２より太い第２連結部８４とを備えている。
第１連結部８２は、（先端）工具部３０の取り付け部に嵌合され、（先端）工具部３０に適宜な固定具例えばピン等により固定される。
第２連結部８４は、中空状の芯部材取り付け部を構成しており、芯部材４４に嵌装される棒体側連結部取り付け孔９４が形成されている。
更に、棒体側連結部取り付け孔９４の開口縁部に続いて、第１の固定溝９０が形成されている。 The second connecting member 80 constitutes an attachment portion that is attached to the (tip) tool portion 30 and connected to the operating rod 12, and includes a first connecting portion 82 which is an end tool attachment portion that is attached to the (tip) tool portion 30, and a second connecting portion 84 which is thicker than the first connecting portion 82 which is the end tool attachment portion.
The first connecting portion 82 is fitted into the mounting portion of the (tip) tool portion 30 and fixed to the (tip) tool portion 30 by a suitable fastener, such as a pin.
The second connecting portion 84 constitutes a hollow core member mounting portion, and has a rod body side connecting portion mounting hole 94 formed therein into which the core member 44 is fitted.
Furthermore, a first fixing groove 90 is formed adjacent to the opening edge of the rod body side connecting portion mounting hole 94 .

第１連結部材５０は、操作棒１２の軸方向に移動可能に操作棒１２の側に配設されており、操作棒１２に先端工具１４を取り付けたとき、第２連結部材８０の操作棒１２側の領域に固定されて第２連結部材８０の移動を制御して、前記（操作棒側の）連結部２４が前記第２連結部材８０の第１の固定溝９０から外れないように形成されている。
更に、第１連結部材５０は、第２連結部材８０の移動を制御するために、第１連結部材５０を第１連結部４０の第２連結部４２に固定する固定手段１６を有している。この第１連結部材５０を第１連結部４０の第２連結部４２に固定する固定手段１６は、前記した第２の固定凸部（プランジャ）６２により構成されている。 The first connecting member 50 is arranged on the side of the operating rod 12 so as to be movable in the axial direction of the operating rod 12, and is fixed to the area of the second connecting member 80 on the operating rod 12 side to control the movement of the second connecting member 80, so that the connecting portion 24 (on the operating rod side) does not come off the first fixing groove 90 of the second connecting member 80 when the tip tool 14 is attached to the operating rod 12.
Furthermore, the first connecting member 50 has a fixing means 16 for fixing the first connecting member 50 to the second connecting portion 42 of the first connecting portion 40 in order to control the movement of the second connecting member 80. The fixing means 16 for fixing the first connecting member 50 to the second connecting portion 42 of the first connecting portion 40 is constituted by the second fixing protrusion (plunger) 62 described above.

次に、操作方法について、第４の実施の形態にかかる連結構造１０を備えた絶縁操作棒１２を利用し、架空配電線バイパス回路を形成するため、絶縁操作棒１２によりその先端に連結された間接活線用の先端工具１４を操作することを想定して、以下説明する。
まず、図３２に示すように、作業者が間接活線工事用の先端工具１４を操作棒１２の先端部に装着するために、連結構造１０を構成する操作棒１２の（操作棒側の）連結部２４と先端工具１４の（先端工具側の）連結部３２と連結する。
具体的には、操作棒１２側の連結部２４の軸線と先端工具１４側の連結部３２の軸線とを一致させ、第１の固定凸部（ピン）６０を第１の固定溝９０の第１の溝部９０Ａと位置合わせする。
次に、操作棒１２を先端工具１４側に移動させて、第１の固定凸部（ピン）６０を第１の固定溝９０の第２の溝部９０Ｂまで挿入し、第２の溝部９０Ｂの先端工具１４側の溝壁まで到達すれば、操作棒１２を円周方向に回して、第１の固定凸部（ピン）６０を第２の溝部９０Ｂの溝に沿って第３の溝部９０Ｃに向けて進める。
連結構造１０が第３の溝部９０Ｃの溝口まで到達したとき、すなわち第２の溝部９０Ｂの行き止まりまで到達したとき、操作棒１２を先端工具１４側より手元側に引き戻し、第１の固定凸部（ピン）６０を第３の溝部９０Ｃに嵌め入れる。 Next, the operation method will be described below assuming that an insulated operating rod 12 equipped with the connecting structure 10 according to the fourth embodiment is used to operate an indirect live line tip tool 14 connected to the tip of the insulated operating rod 12 in order to form an overhead distribution line bypass circuit.
First, as shown in Figure 32, in order for an operator to attach the tip tool 14 for indirect live-line work to the tip of the operating rod 12, the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the tip tool side) of the tip tool 14, which constitute the connecting structure 10, are connected.
Specifically, the axis of the connecting portion 24 on the operating rod 12 side is aligned with the axis of the connecting portion 32 on the tip tool 14 side, and the first fixing convex portion (pin) 60 is aligned with the first groove portion 90A of the first fixing groove 90.
Next, the operating rod 12 is moved toward the tip tool 14, and the first fixing convex portion (pin) 60 is inserted into the second groove portion 90B of the first fixing groove 90. When it reaches the groove wall on the tip tool 14 side of the second groove portion 90B, the operating rod 12 is rotated circumferentially, and the first fixing convex portion (pin) 60 is advanced along the groove of the second groove portion 90B toward the third groove portion 90C.
When the connecting structure 10 reaches the mouth of the third groove portion 90C, i.e., when it reaches the end of the second groove portion 90B, the operating rod 12 is pulled back from the tip tool 14 side toward the handle side, and the first fixing protrusion (pin) 60 is inserted into the third groove portion 90C.

第１連結部材５０を第２連結部４２に固定するときには、図３２（Ｂ）に示すように、第１連結部材５０の第２の固定凸部（プランジャ）６２と芯部材４４の第２の固定溝９２との作用により第１連結部材５０を操作棒１２の長手方向に移動させて、第１連結部材５０により第２連結部材８０を押圧する位置まで第１連結部材５０を移動させて、第１連結部材５０と第２連結部４２とを連結させて、操作棒１２の（操作棒側の）連結部２４と先端工具１４の（先端工具側の）連結部３２とを強固に連結させるようにする。
この実施の形態においては、芯部材４４の軸線と第２連結部４２の軸線と一致させ、第２の固定凸部（プランジャ）６２を第２の固定溝９２の第１の溝部９２Ａと位置合わせする。
次に、第１連結部材５０を先端工具１４側に移動させて、第２の固定凸部（プランジャ）６２を第２の固定溝９２の第２の溝部９２Ｂ迄挿入し、第２の固定溝９２の先端工具１４側の溝壁まで、到達すれば、第１連結部材５０を円周方向に回して、第２の固定凸部（プランジャ）６２を第２の溝部９２Ｂの溝に沿って第３の溝部９２Ｃに向けて進める。
第２の固定凸部（プランジャ）６２が第３の溝部９２Ｃの溝口まで到達したとき、すなわち第２の溝部９２Ｂの行き止まりまで到達したとき、第２の固定凸部（プランジャ）６２を第３の溝部９２Ｃに嵌め入れる。
このように、第１連結部材５０を回すことにより、第１連結部材５０の第２の固定凸部（プランジャ）６２と第２連結部４２の第２の固定溝９２の作用により、第１連結部材５０を第２連結部材８０を押圧する位置まで移動させて、第１連結部材５０を芯部材４４の第２連結部４２に連結させる。
When fixing the first connecting member 50 to the second connecting portion 42, as shown in Figure 32 (B), the first connecting member 50 is moved in the longitudinal direction of the operating rod 12 by the action of the second fixing convex portion (plunger) 62 of the first connecting member 50 and the second fixing groove 92 of the core member 44, and the first connecting member 50 is moved to a position where it presses the second connecting member 80, connecting the first connecting member 50 and the second connecting portion 42, and firmly connecting the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the tip tool side) of the tip tool 14.
In this embodiment, the axis of the core member 44 and the axis of the second connecting portion 42 are aligned, and the second fixing protrusion (plunger) 62 is aligned with the first groove portion 92 A of the second fixing groove 92 .
Next, the first connecting member 50 is moved toward the tool tip 14, and the second fixing convex portion (plunger) 62 is inserted up to the second groove portion 92B of the second fixing groove 92. When it reaches the groove wall on the tool tip 14 side of the second fixing groove 92, the first connecting member 50 is rotated circumferentially, and the second fixing convex portion (plunger) 62 is advanced along the groove of the second groove portion 92B toward the third groove portion 92C.
When the second fixing protrusion (plunger) 62 reaches the mouth of the third groove portion 92C , that is, when it reaches the dead end of the second groove portion 92B, the second fixing protrusion (plunger) 62 is fitted into the third groove portion 92C.
In this way, by rotating the first connecting member 50, the action of the second fixing convex portion (plunger) 62 of the first connecting member 50 and the second fixing groove 92 of the second connecting portion 42 moves the first connecting member 50 to a position where it presses the second connecting member 80, thereby connecting the first connecting member 50 to the second connecting portion 42 of the core member 44.

連結構造１０において、操作棒本体２０の（操作棒側の）連結部２４と工具部（先端工具部）の（先端工具側の）連結部３２とのロックを解除するときについて、主として図３３に基づいて説明する。第１連結部材５０を回して第２の溝部９２Ｂの位置まで移動させて仮固定した状態とする。そして、操作棒本体２０の（操作棒側の）連結部２４を先端側に移動させて、第１連結部材５０の移動に伴い第２連結部材８０を手元側に押して、固定手段１６を構成する第１の固定凸部（ピン）６０を第３の溝部９０Ｃより外し、操作棒１２を回して第１の固定凸部（ピン）６０を第２の溝部９０Ｂに沿って移動させ、第１の固定溝９０に位置したとき、手元側に操作棒１２を移動させて第１の固定凸部（ピン）６０を第１の固定溝９０から外すことにより、操作棒１２の（操作棒側の）連結部２４と先端工具１４の（先端工具側の）連結部３２とを分離することができる。In the connecting structure 10, the unlocking between the connecting portion 24 (on the operating rod side) of the operating rod body 20 and the connecting portion 32 (on the tip tool side) of the tool portion (tip tool portion) is described mainly with reference to Figure 33. The first connecting member 50 is rotated and moved to the position of the second groove portion 92B to be temporarily fixed. Then, the connecting portion 24 (on the operating rod side) of the operating rod main body 20 is moved toward the tip side, and as the first connecting member 50 moves, the second connecting member 80 is pushed toward the hand side, removing the first fixing convex portion (pin) 60 constituting the fixing means 16 from the third groove portion 90C, and the operating rod 12 is turned to move the first fixing convex portion (pin) 60 along the second groove portion 90B. When it is positioned in the first fixing groove 90, the operating rod 12 is moved toward the hand side to remove the first fixing convex portion (pin) 60 from the first fixing groove 90, thereby separating the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the hand side) of the tip tool 14.

（第１ないし第３の実施の形態の変形例）
第１ないし第３の実施の形態の変形例について、図３６から図３８に基づいて以下説明する。
この変形例は、連結構造１０が、被連結部を備えた先端工具１４に近い位置ではなく、棒体の手元側の近い位置に形成されている。 (Modifications of the First to Third Embodiments)
Modifications of the first to third embodiments will be described below with reference to FIGS.
In this modified example, the connecting structure 10 is formed at a position close to the handle side of the rod body, rather than at a position close to the tool tip 14 having the connected portion.

変形例の連結構造１０は、二つに分割された棒体のうち、手元側の棒体と、先端側の棒体と連結するものであって、操作棒１２を構成する先端工具１４が連結される第１操作棒体１２Ａと、手元側の操作棒１２を構成する第２操作棒体１２Ｂとを連結するように形成されている。
第１操作棒体１２Ａは、連結部を構成しており、その先端側に被連結部が形成されており、第２操作棒体１２Ｂは、棒体を構成しており、その後端に連結部が形成されている。 The modified connecting structure 10 connects the rod body at the proximal side to the rod body at the tip side of the two divided rod bodies, and is formed to connect a first operating rod body 12A to which the tip tool 14 constituting the operating rod 12 is connected, and a second operating rod body 12B that constitutes the operating rod 12 at the proximal side.
The first operating rod body 12A constitutes a connecting portion with a connected portion formed at its tip side, and the second operating rod body 12B constitutes a rod body with a connecting portion formed at its rear end.

操作棒１２は、第１の実施の形態の変形例においては、第１操作棒体１２Ａを構成する長尺円柱状の操作棒本体２０と、操作棒本体２０の後端すなわち手前側に付設される、第２操作棒体１２Ｂを構成する把持部２２と備える。
操作棒本体２０は、その先端側には先端工具１４が取り付けられ、その後端側の領域には、被連結部を構成する（操作棒側の）連結部２４を備えている。 In a modified example of the first embodiment, the operating rod 12 comprises a long, cylindrical operating rod main body 20 constituting the first operating rod body 12A, and a gripping portion 22 constituting the second operating rod body 12B, which is attached to the rear end, i.e., the front side, of the operating rod main body 20.
The operating rod body 20 has the tool tip 14 attached to its tip side, and is provided in its rear end area with a connecting portion 24 (on the operating rod side) that constitutes the connected portion.

以上のように、本発明の実施の形態は、前記記載で開示されているが、本発明は、これに限定されるものではない。
すなわち、本発明の技術的思想及び目的の範囲から逸脱することなく、以上説明した実施の形態に対し、機序、形状、材質、数量、位置又は配置等に関して、様々の変更を加えることができるものであり、それらは、本発明に含まれるものである。
前記実施の形態においては、棒体である操作棒１２の側の連結部２４と被連結部側の連結部３２とは、棒体の軸線方向に伸びる中心線を同心として、並列されて、組み合わせられるように形成され、一方の連結部２４に凸部が形成され、他方の連結部３２に凹部が形成されていたが、（操作棒側の）連結部２４に凹部を構成する例えば棒体側連結部取り付け孔９４が形成され、（先端工具側の）連結部３２に凸部を構成する例えば芯部材４４が形成されても良い。 As described above, the embodiment of the present invention has been disclosed in the above description, but the present invention is not limited thereto.
In other words, various modifications can be made to the above-described embodiments in terms of mechanism, shape, material, quantity, position, arrangement, etc. without departing from the scope of the technical idea and purpose of the present invention, and these are included in the present invention.
In the above embodiment, the connecting portion 24 on the side of the operating rod 12, which is a rod body, and the connecting portion 32 on the side of the connected portion are arranged in parallel and formed so as to be combined with each other, with the center line extending in the axial direction of the rod body being concentric, and a convex portion is formed on one connecting portion 24, and a concave portion is formed on the other connecting portion 32. However, it is also possible that the connecting portion 24 (on the operating rod side) is formed with, for example, a rod body side connecting portion mounting hole 94 that constitutes a concave portion, and the connecting portion 32 (on the tip tool side) is formed with, for example, a core member 44 that constitutes a convex portion.

本発明にかかる連結構造は、広く棒状体の連結構造に用いられる。The connecting structure of the present invention is widely used as a connecting structure for rod-shaped bodies.

１０連結構造
１２操作棒
１２Ａ第１操作棒体
１２Ｂ第２操作棒体
１４先端工具
１６固定手段
１８抑止手段
２０操作棒本体
２０ａ凹み部
２２把持部
２４（操作棒側の）連結部
２６（第１）操作棒取付部材
２６ａ固定ピン
２６ｂ固定ピン
２６ｃ連結ネジ
２６ｄ取り付け穴
２８（第２）操作棒取付部材
２８ａ抜け止めネジ
３０工具部（先端工具部）
３２（先端工具側の）連結部
３２ａ凹み部
４０第１連結部
４２第２連結部
４２ａ凹み部
４４芯部材
４６中空部
４６ａ第１中空部
４６ｂ第２中空部
４６ｃ第３中空部
４８雄ネジ部

５０第１連結部材
５０ａ孔
５０Ｅ先端面
５２第３連結部材
５８雌ネジ部

６０第１の固定凸部（ピン）
６２第２の固定凸部（プランジャ）
６２ａ筒状の本体
６２ｂ付勢体
６２ｃ凸部
６４固定具

７０弾発部材
７２弾発部材取り付け部
７４弾発部材取り付け部
７６第２弾発部材

８０第２連結部材
８０Ｅ後端面
８２第１連結部
８４第２連結部
８８雄ネジ部

９０第１の固定溝
９０Ａ第１の溝部
９０Ｂ第２の溝部
９０Ｃ第３の溝部
９２第２の固定溝
９２ａ凹部
９２ｂ移動路
９２Ａ第１の溝部
９２Ｂ第２の溝部
９２Ｃ第３の溝部
９４棒体側連結部取り付け孔
９６柱状の芯部材取り付け部
９８第３弾発部材 10 Connection structure 12 Operating rod 12A First operating rod body 12B Second operating rod body 14 Tip tool 16 Fixing means 18 Determination means 20 Operating rod body 20a Recessed portion 22 Grip portion 24 (Operation rod side) Connection portion 26 (First) Operating rod mounting member 26a Fixing pin 26b Fixing pin 26c Connection screw 26d Mounting hole 28 (Second) Operating rod mounting member 28a Anti-slip screw 30 Tool portion (tip tool portion)
32 (connecting portion 32a on the tool tip side) Recessed portion 40 First connecting portion 42 Second connecting portion 42a Recessed portion 44 Core member 46 Hollow portion 46a First hollow portion 46b Second hollow portion 46c Third hollow portion 48 Male thread portion

50 First connecting member 50a Hole 50E Tip surface 52 Third connecting member 58 Female screw portion

60 First fixing protrusion (pin)
62 Second fixing protrusion (plunger)
62a: Cylindrical body 62b: Pressing body 62c: Convex portion 64: Fixing device

70 Resilient member 72 Resilient member mounting portion 74 Resilient member mounting portion 76 Second resilient member

80 Second connecting member 80E Rear end surface 82 First connecting portion 84 Second connecting portion 88 Male thread portion

90 First fixing groove 90A First groove portion 90B Second groove portion 90C Third groove portion 92 Second fixing groove 92a Recessed portion 92b Movement path 92A First groove portion 92B Second groove portion 92C Third groove portion 94 Rod body side connecting portion attachment hole 96 Columnar core member attachment portion 98 Third resilient member

Claims

A connecting structure that can connect a rod body and a connected part connected to the rod body to a locked state,
A core member configured to connect the connecting portion on the rod body side and the connecting portion on the connected portion side;
A first connecting member arranged on the rod body side in an area on the rod body side so as to be movable in the axial direction of the rod body;
a second connecting member disposed in a region on the connected portion side,
The first connecting member is annular and fitted around the core member,
The second connecting member has a connecting portion mounting hole into which a core member is inserted,
A core member is combined with the connecting portion mounting hole so that the connecting portion on the rod body side and the connecting portion on the connected portion side are connected to each other,
The first connecting member and the second connecting member are configured to be pressed toward the tip side in a locked state by a first resilient member interposed between a proximal side of the first connecting member and a tip side of the rod body,
the core member has a shape adapted to be inserted into a connecting portion attachment hole formed in a hollow portion provided in the second connecting portion of the second connecting member,
A columnar core member attachment portion is provided in the connecting portion attachment hole,
The columnar core member attachment portion is configured to abut against a proximal portion of the second connecting member,
The core member has a hollow annular portion drilled in a longitudinal direction,
The hollow portion has a first hollow portion formed at a center thereof, the first hollow portion being elongated and narrow, and a second hollow portion formed on a tip side of the first hollow portion,
A second resilient member is disposed in a second hollow portion that exists between a proximal end of the columnar core member attachment portion and a boundary wall portion of the first hollow portion of the hollow portion,
The second resilient member is configured to contract and push the columnar core member attachment portion and the second connecting portion toward the tip side when locked, and is configured to be in a lightly contracted state in the locked state and to be further contracted when the second connecting member is pulled toward the front side in the release operation,
The core member has a male threaded portion constituting a fixing means on the outer periphery of the area in which the first connecting member is interposed, and the first connecting member has a female threaded portion constituting a fixing means within a tube in the area in which the core member is interposed, and the fixing means of the first connecting member is screwed into the fixing means of the core member and is configured so that the first connecting member can be moved by rotating it and stopped at a position suitable for pressing the second connecting member by the first connecting member,
The rod body is provided with a fixing means constituting a separation prevention means for preventing separation of the connected parts by the connecting structure in an area on the connected part side connected to the rod body,
The second connecting member is formed with a fixing means for stopping the fixing means on the rod body in an area on the connected portion side that is connected to the rod body,
A rod body connection structure characterized in that, when the connected part is connected to the rod body, the connecting part on the rod body side is fixed to a fixing means formed in the first connecting member side region of the second connecting member by a fixing means constituting a separation prevention means of the rod body, thereby controlling the movement of the second connecting member and preventing the fixing means on the rod body side from coming off the fixing means formed on the second connecting member.

A connecting structure that can connect a rod body and a connected part connected to the rod body to a locked state,
A core member configured to connect the connecting portion on the rod body side and the connecting portion on the connected portion side;
A first connecting member arranged on the rod body side in an area on the rod body side so as to be movable in the axial direction of the rod body;
a second connecting member disposed in a region on the connected portion side,
The first connecting member is annular and fitted around the core member,
The second connecting member has a connecting portion mounting hole into which a core member is inserted,
A core member is combined with the connecting portion mounting hole so that the connecting portion on the rod body side and the connecting portion on the connected portion side are connected to each other,
The first connecting member and the second connecting member are configured to be pressed toward the tip side in a locked state by a first resilient member constituting a restraining means interposed between a proximal side of the first connecting member and a tip side of the rod body,
the core member has a shape adapted to be inserted into a connecting portion attachment hole formed in a hollow portion provided in the second connecting portion of the second connecting member,
A columnar core member attachment portion is provided in the connecting portion attachment hole,
The columnar core member attachment portion is configured to abut against a proximal portion of the second connecting member,
The core member has a hollow annular portion drilled in a longitudinal direction,
The hollow portion has a first hollow portion formed at a center thereof, the first hollow portion being elongated and narrow, and a second hollow portion formed on a tip side of the first hollow portion,
a second resilient member constituting the restraining means is disposed in a second hollow portion that exists between a proximal end of the columnar core member attachment portion and a boundary wall portion of the first hollow portion of the hollow portion;
The second resilient member is configured to contract and push the columnar core member attachment portion and the second connecting portion toward the tip side when locked, and is configured to be in a lightly contracted state in the locked state and to be further contracted when the second connecting member is pulled toward the front side in the release operation,
The core member has a male threaded portion constituting a fixing means on the outer periphery of the area in which the first connecting member is interposed, and the first connecting member has a female threaded portion constituting a fixing means within a tube in the area in which the core member is interposed, and the fixing means of the first connecting member is screwed into the fixing means of the core member and is configured so that the first connecting member can be moved by rotating it and stopped at a position suitable for pressing the second connecting member by the first connecting member,
The connecting portion on the rod body side and the connecting portion on the connected portion side have a convex portion formed on one side and a concave portion formed on the other side, and are configured to be connected by combining the convex portion and the concave portion,
The first connecting member and the second connecting member are configured to be separated by moving the connected first connecting member and the connected second connecting member in opposite directions,
The rod body is provided with a suppression means that constitutes a separation prevention means for preventing separation of the rod body and the rod body connected by the connection structure,
A rod body connecting structure, characterized in that the restraining means is configured to press the first connecting member toward the second connecting member so that the interlocking convex and concave portions do not separate when connected.